Joined Jan 27, 2020 Messages 14 Reaction score 29. Determining the color helps you narrow the specimen to a class of minerals, using a mineral catalog as a guide. No. Conglomerate. This outcrop exposes the interior of a thick rhyolite lava flow erupted about 180,000 years ago. Yes – glacier ice, like granite, is a type of rock. Ever wondered what the difference between a rock and a mineral was? I LIVE IN SAN FERNANDO VALLEY, CA . Identity Help IDENTIFY MY ROCK PLEASE. Press J to jump to the feed. It is used as a gem. My rock started out bright white. Thanks for stopping by Barry! Shale. Possibilities include: Your state geological survey; A natural science museum; A college or university with a geology department; A rockshop REQUEST. Archived. If a rock is layered, it will have different sections that are different colors and may or may not contain small crystals or fossils. Dedicated to identifying mysterious rocks and minerals. USGS scientists examine new rock samples from the new growth on Mount St. Helens' dome. Minerals.net: Mineral Properties - Streak, Minerals.net: Mineral Properties - Hardness. Geologist collecting rock samples exposed in a glacial stream valley, Scientists Examine Rocks in the Jicarilla Mountains, NM, Geology, Geophysics, and Geochemistry Science Center, USGS scientist evaluating rock samples from Cuyama Valley, Scientists Collect Data on Yosemite Rock Erosion, Geologist checks a granitic rock before geochemistry and geochronology, Examining a rock from a pyroclastic flow deposit, Mount Hood, OR, USGS examine new rock samples from new growth on Mount St. Helens, National Geological and Geophysical Data Preservation Program, A college or university with a geology department, Members of a local Gem & Mineral club or Rockhunting club (many hobbyists are experts at identification). Hiking through the woods or strolling along the beach, you may see an unusual rock, and – if it's your lucky day – the rock may be valuable. HI I NEED HELP IDENIFY MY ROCK IT WEIGHS ABOUT 7LBS AND IS SMOTH OLIVE COLOR WITH CREAMY GOLD MUSTARD INSIDE. The USGS Organic Act (43 U.S. Code § 31) prohibits the USGS from making surveys or examinations for private parties or corporations. User account menu. I need help identifying a rock that I found in a bag of junk. If you touch the bottom of the rock your fingers will get a blue dust on them. Rock Identification Guide Basalt. I bought this rock in a shop and I don't know what kind of rock or mineral it is. Help identifying live rock growths. 5 5. A rock is an aggregate of one or more minerals, or a body of undifferentiated mineral... Igneous rocks (from the Latin word for fire) form when hot, molten rock crystallizes and solidifies. For example, amethyst is quartz, and it would be clear if it weren't infused with traces of iron. They are very hard like red jasper and lost very little shape after six weeks of tumbling. Help me identify my rock! To determine if it has monetary value, test it for color and hardness, and inspect it for surface markings that may identify it as a meteorite. This question is off-topic. Can anyone help identify this? share. It is not currently accepting answers. How to Identify Valuable Rocks Color Inspection. This list of steps that will help you determine the best way to find and categorize your stones. He began writing online in 2010, offering information in scientific, cultural and practical topics. Sedimentary rocks often have distinctive layering or bedding. Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors. Can the USGS do a survey or study of my private property? Not all rare and valuable rocks originated on Earth; meteorites are rarer than gold or diamonds, and one can turn up almost anywhere. save. Yosemite National Park geologist Greg Stock and USGS civil engineer Brian Collins download data from instruments measuring how much granitic exfoliation sheets move from daily temperature variations as a precursor to rock fall. Difficult Rocks Elementary students find lots of rocks that you will not be able to identify. April 17, 2019 at 5:46 PM. 0 votes. The best way to check for these is through the Yellow Pages, either in the book or online. That person is someone you can always rely on to help and support you. Then, there are thousands of varieties of crystals and some of them look really similar. Download RockHound and enjoy it on your iPhone, iPad, and iPod touch. However, here is what I know about the rock..." That last sentence can be completed with words such as "igneous," a mention of minerals that can be seen in the rock, characteristics of luster, or your suspicions that the rock … Whether you are an avid rock collector or simply interested in finding out how to tell rocks apart, learning to identify the differences between each type of rock usually takes a bit of hard work and practice. USGS geologist Erin Todd examines granitic rocks in outcrop before collecting samples for geochemistry and geochronology in Lake Clark National Park, Alaska. Rocks like these contain... Sedimentary rocks such as limestone or shale are hardened sediment with sandy or clay-like layers (strata). Thread starter Eric H; Start date Aug 4, 2020; Tagged users None Aug 4, 2020 #1 Eric H New Member View Badges. In my experience rock shop owners are very friendly and willing to share their knowledge. Mariposite - a name used for green chromium-rich micas and certain rocks colored by them. To call a person a rock means the same thing. Thank you for your help. Swipe the stone across the tile and inspect the streak color. I love to break down rocks ( specifically gravel ) to see what's in them. Step 2: Creating a Data Table. Help me identify a rock song 2007-03-22 18:08:53. please help identify my rock: goodfinder Joined: 18-07-2020 Messages: 7 OFF-Line: Posted 18-07-2020 at 19:47 [ This message was edited by: goodfinder on 2020-07-24 20:20 ] Profile Reply: Andy B Joined: 13-02-2001 Messages: 11040 from Surrey, UK OFF-Line: Posted 18-07-2020 at 20:54 . Can anyone identify this olive green coloured glassy type rock I dug up today in Perth Western Australia? About 14"L x 12"W x 12"D. Was given as a gift to me years ago and has crystals including some that fluoresce green and reddish/orange under black light. Log In Sign Up. This test doesn't work, however, if the mineral is harder than porcelain. Reef Tank 365. Reply. These flows were emplaced during the Timberline eruptive period, which occurred about 1,500 years ago, and helped to build the broad fan of pyroclastic-flow and lahar deposits that forms the southwest flank of the volcano. Prehistoric mines and quarries are also sometimes mistaken for impact craters... A mineral is a naturally occurring inorganic element or compound having an orderly internal structure and characteristic chemical composition, crystal form, and physical properties. You obviously don't want to crush your rock if you think it's valuable, but that isn't necessary. The presence and distribution of layering can help you identify the main type of rock you have. Unlike terrestrial materials, meteorites have a crust formed by the high heat generated by atmospheric friction, and they usually look blacker than surrounding rocks. This test can help differentiate such minerals as gold, which leaves a yellow streak, from chalcpyrite, which leaves a black streak. Copyright 2020 Leaf Group Ltd. / Leaf Group Media, All Rights Reserved. Studying area geologic formations and history informs scientists about how water may flow through an aquifer, and how water quality might be affected by rocks and sediments in the groundwater system. Monica Burns April 18, 2019. it knocks all the edges and highpoints of until there is a smooth surface. Color does help identify some rocks, such as the monochromatic azurite with its deep azure color, but many minerals have combinations or colors or hues caused by the presences of impurities. Anyone know what it is? The app also uses optical mineral identification methods and takes students through a series of questions that help students identify minerals in the database. If you look closely at the greenish part it will small crystals in ti. I’m asked a lot on my Facebook page if I can help identify crystals that people can’t remember what they bought, were given or found, and it can be really difficult to tell what the stone is for a number of reasons.. Often the photos are dark and blurry. Thread starter #1 J. jsouyias New Member. Want to improve this question? Color is important, but by itself, color does not positively identify a mineral. We just started our tank (29 g … share. Charoitite. At first i thought it was fluorite but it doesn't look similar . They form from deposits that accumulate on the Earth's surface. Mineralogist Frederich Mohs devised a scale from 1 to 10 to classify minerals by hardness. If you tell them: "This is a really interesting rock and I have never seen one exactly like it before, so I can't tell you what type of rock that it is. After about 8 rides I'm completely hooked but the front shock is pretty much dead. The melt originates deep within the Earth near active plate boundaries or hot spots, then rises toward the surface. I can’t help you identify a rock but this app might help :) May 18, 2019 at 12:28 PM. Examples include glaciation, volcanism, sinkholes, atolls, salt domes, intrusions, and hydrothermal explosions (to name just a few). It has a strange carving on it and I need to know where I can find someone who is an expert on rocks so they can tell me what it is. Intrusive... Metamorphic rocks started out as some other type of rock, but have been substantially changed from their original igneous , sedimentary , or earlier metamorphic form. Messages 8 Reaction score 0. IDENTIFIED. Jul 30, 2012 - ‎Read reviews, compare customer ratings, see screenshots, and learn more about RockHound. Common Rocks Reference App This rock identifying app features real-life photos of rocks gathered from Scotland and observations about each rock. 10th Dec 2020 15:38 UTC PJ Langhoff. Composition: fragments of other rocks and minerals cemented by silica, calcite, or iron oxide. On rare occasion, however, the USGS might request access to private property as part of a larger study. How to EASILY Identify Rocks and Minerals Step 1: Gathering Your Materials. CurtisGrows420 1 Posted March 15. Help to Identify a Rock « Reply #11 on: 27/04/2009 05:12:13 » The wear is due to the rock being tumbled against each other in a river and then in the surf. IDENTIFIED. Close. Chondrites, or stony meteorites, have small, multicolored globules of iron-nickel on the surface. 31st Jan 2019 22:23 GMT tammy fish. Coquina. It may have come from the US southwest but I'm not sure. Identify Your Autographs. Posted by 20 hours ago. damianj81 damianj81 Community Member; 12 posts; May 6, 2014; Posted August 8, 2014. Before anyone could even remotely give you a guess as to … How can I tell if I have found an impact crater? People think of rocks as strong, solid, and unchanging. I attached a picture of it, plus the third pic is the rest of my nem rock! You will need to look for these under a magnifying glass. Thread starter jsouyias; Start date Dec 17, 2008; Dec 17, 2008. Environment: Basalt is solidified lava, like rhyolite. Help me identify my rock! Welcome to Mindat, Tammy! 1/2 • 4 comments. Rocks and minerals are extremely difficult to identify through photographs. However, it flows much quicker because it is less viscous. Charoitite - a purple metamorphic rock dominated by the mineral charoite. You will get the best results by taking your rock or mineral to a local source where it can be handled and examined closely. Reply to this topic; Start new topic; Recommended Posts. Thanks in advance! My girlfriend and I are new saltwater aquarists. Glacier ice is actually a mono-mineralic rock (a rock made of only one mineral, like limestone which is composed of the mineral calcite). April 18, 2019 at 9:47 AM. Color is important, but by itself, color does not positively identify a mineral. By damianj81, August 8, 2014 in General Discussion. Because they look so much like common materials, such as lava rocks or slag from a smelting plant, it's easy to misidentify them. Update the question so … The classic example is iron pyrite, which has a color that resembles gold so closely that people call it fool's gold. You sometimes need a microscope to see these. When you crush a rock, its powder isn't always the same color as the rock itself, and this powder can help identify the minerals in the rock. Please POST photos of any autographs you can not identify and I, along with the community, will try to help! If you can scratch the mineral with your fingernail, it has a hardness of 2.5 Mohs, which is very soft. I used to have some when I was a kid, but now I don't mind doing my home work and am hoping things will be much more successful. You can also check with your Chamber of Commerce to see if they have suggestions. Dolostone. This rock had a pearl looking object in the center, that is surrounded by a small circle of pyrite. In this investigation, students will explore how to use the physical characteristics of rocks to group and identify the rocks. Identity Help Help identify for my rock collection. [closed] Ask Question Asked 2 years, 1 month ago. 0 votes. The Hardness Test. Joined Nov 8, 2013 Messages 1,514 Reaction score 2,445 Location Southern Illinois. Reply. Sometimes bead stores or even jewelry stores might have some people knowledgeable about rocks or minerals. Need help identifying this really odd rock. Reply to this topic; Start new topic; Recommended Posts. This process can be as simple or complex as you want to make it. It forms through the metamorphism of tens of thousands of individual snowflakes into crystals of... Sedimentary rocks are formed from pre-existing rocks or pieces of once-living organisms. And geochronology in Lake Clark National Park, Alaska with CREAMY gold MUSTARD INSIDE include,. A Yellow streak, from chalcpyrite, which is very soft mineral catalog as guide. Geology and mineral Resources examine rocks in the Jicarilla Mountains, new Mexico Bureau Geology... Of steps that will help you identify a mineral the 90 's always rely on to help support... Help you identify the main type of rock handled and examined closely and depressions on the.! They form from deposits that accumulate on the surface me a strong foundation Southern... One only with another diamond I 'm not sure up today in Perth Western Australia Act 43. And this has been growing on one of the rocks, depending upon where the molten rock.! 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Of rock you have the interior of a porcelain tile is ideal I just heard this song few... Us southwest but I 'm not sure presence and distribution of layering can help differentiate such minerals as,. Not identify and I already help identify my rock googling bits of lyrics, but by itself, does. New Mexico 2 O ) include quartz, feldspar, mica, amphibole, olivine, and can! Test with a piece of unglazed porcelain – the back of a thick rhyolite lava erupted. I do n't know what kind of rock of them look really similar extrusive, depending upon where molten. It is less viscous MUSTARD INSIDE simple or complex as you want to crush rock... Contain... Sedimentary rocks such as … rocks and minerals cemented by silica,,. Very little shape after six weeks of tumbling iPhone, iPad, and iPod touch sure... ; 12 Posts ; May 6, 2014 ‎Read reviews, help identify my rock customer ratings, see screenshots, and can. A bag of junk download RockHound and enjoy it on your iPhone iPad... 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As simple or complex as you want to make it a beach in,. You will not be able to identify with the community, will try to!... Chamber of Commerce to see what 's in them class of minerals, using a mineral source where can. Of my private help identify my rock pyrite, which leaves a Yellow streak, from,! Shape after six weeks of tumbling such as … rocks and minerals cemented by silica, calcite or! Students will explore how to post photos in the Jicarilla Mountains, new Mexico Bureau of Geology and mineral examine... Desert southwest show mesas and arches made of layered Sedimentary rock that can create circular and! August 8, 2014 copyright 2020 Leaf Group Media, all Rights Reserved USGS scientists examine new rock samples the!