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The goal of this is to learn how to identify metamorphic rocks in hand sample. Please identify the following Metamorphic rocks samples by identifying its: 1. Color(s) 2. Foliation (slaty, gneissic, none, etc.) 3. Other Features (minerals, reaction with HCI, texture, etc.) 4. Metamorphic Type (regional or contact)

The goal of this is to learn how to identify metamorphic rocks in hand sample. Please identify the following Metamorphic rocks samples by identifying its: 1. Color(s) 2. Foliation (slaty, gneissic, none, etc.) 3. Other Features (minerals, reaction with HCI, texture, etc.) 4. Metamorphic Type (regional or contact)

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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The goal of this is to learn how to identify metamorphic rocks in hand sample.
Please identify the following Metamorphic rocks samples by identifying its:
1. Color(s)
2. Foliation (slaty, gneissic, none, etc.)
3. Other Features (minerals, reaction with HCI, texture, etc.)
4. Metamorphic Type (regional or contact)

*use the meta rock id chart below to identify the sample*

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Transcribed Image Text:ຊ
= META ROCK ID CHART Foliated distinct alternating layers Non- Foliated no consistent layers Colors/ Visible Minerals one solid color/none visible multiple colors/ maybe some visible multiple colors/ all visible HCI Reaction doesn't react with HCI might react with HCI always reacts with HCI - Minerals mica quartz, mica, chlorite mica, quartz amphibole, plagioclase feldspar, mica, quartz cannot scratch glass scratches glass scratches glass cannot scratch glass 1/1 | - 100% + Metamorphic Rock ID Other Characteristics breaks in flat pieces/ hard/ fine layers on sides typically no visible xtals/ shiny luster may be flakey (mica)/ sparkly larger xtals/sparkly bands of light (pink/white) & dark minerals Other Characteristics black or steel gray/ shiny may have visible xtals/ pink-white-reddish-purple looks like conglomerate but may be shiny visible xtals/ pink-white-tan/ may have swirls of gray or black Foliation Type slaty phyllitic schistose gneissic banding schistose - carbon ↑ ↑ Composition/Minerals rock fragments & quartz calcite ↑ quartz - ROCK TYPE (Parent Rock) SLATE (Mudstone) PHYLLITE (Mudstone) SCHIST (Slate) AMPHIBOLITE (Basalt/Gabbro) GNEISS (Schist) ANTHRACITE COAL (Bituminous Coal) QUARTZITE (Sandstone) META- CONGLOMERATE (Conglomerate) MARBLE (Limestone) Contact Metamorphism Regional Metamorphism ↓ ⠀
Transcribed Image Text:= META ROCK ID CHART Foliated distinct alternating layers Non- Foliated no consistent layers Colors/ Visible Minerals one solid color/none visible multiple colors/ maybe some visible multiple colors/ all visible HCI Reaction doesn't react with HCI might react with HCI always reacts with HCI - Minerals mica quartz, mica, chlorite mica, quartz amphibole, plagioclase feldspar, mica, quartz cannot scratch glass scratches glass scratches glass cannot scratch glass 1/1 | - 100% + Metamorphic Rock ID Other Characteristics breaks in flat pieces/ hard/ fine layers on sides typically no visible xtals/ shiny luster may be flakey (mica)/ sparkly larger xtals/sparkly bands of light (pink/white) & dark minerals Other Characteristics black or steel gray/ shiny may have visible xtals/ pink-white-reddish-purple looks like conglomerate but may be shiny visible xtals/ pink-white-tan/ may have swirls of gray or black Foliation Type slaty phyllitic schistose gneissic banding schistose - carbon ↑ ↑ Composition/Minerals rock fragments & quartz calcite ↑ quartz - ROCK TYPE (Parent Rock) SLATE (Mudstone) PHYLLITE (Mudstone) SCHIST (Slate) AMPHIBOLITE (Basalt/Gabbro) GNEISS (Schist) ANTHRACITE COAL (Bituminous Coal) QUARTZITE (Sandstone) META- CONGLOMERATE (Conglomerate) MARBLE (Limestone) Contact Metamorphism Regional Metamorphism ↓ ⠀
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