Minerals
What are 2 characteristics of Potassium Feldspar?
1.) The color can be either pink or white.
2.) It is known to be commonly orthoclase.
What is the order of metamorphism, starting with Slate?
Slate,Phylite,Schist,Gneiss.
What is the texture found in organic sedimentary rocks?
Crystalline.
What 2 environments are igneous rocks formed?
Intrusive (plutonic), and Extrusive (volcanic).
What texture are Inorganic Sedimentary rocks that are fine to coarse?
Crystalline.
If the hardness of a mineral is 2.5, what can it be scratched with?
What are two types of textures of a metamorphic rock?
Foliated and non-foliated.
What is the composition of a organic sedimentary rock?
They mainly contain quartz, feldspar, and clay minerals; may contain fragments of other rocks and minerals.
Why does Pumice have so many holes and is lightweight?
Because it is a vesicular rock, it is made up of air bubbles or pockets.
What Inorganic Sedimentary rocks comes from cemented shells or has a biologic origin?
Limestone.
What kind of luster does Galena produce?
metallic.
What kind of metamorphic rock has platy mica crystals that are visible from metamorphism of clay and feldspar's?
Schist.
What is the grain size of clay?
What is the crystal size of Obsidian?
Non-crystalline.
What is an example of a Bioclastic rock?
Carbon.
What is something special about calcite?
Calcite can bubble when acid is placed on it.
What are the two types of metamorphism that occur with a both non-foliated and foliated rocks?
Regional and Contact.
What are the 2 types of fragments that occur in organic sedimentary rocks?
Angular, and Rounded.
What kind of textures do Igneous rocks have?
Glassy, Fine, Coarse, Very Coarse, Non-Vesicular, and Vesicular (gas pockets).
What is the grain size of a crystalline Inorganic Sedimentary rock?
Fine to Coarse.
What mineral has a greasy feel and can also be scratched with a fingernail?
Talc.
What is the metamorphism of Quartz Sandstone?
Quartzite.
What organic sedimentary rock is compact and may split easily?
Shale.
What is the crystal size of Pegmatite?
Very Coarse (10 mm or larger).
What rocks are from chemical precipitates and evaporates?
Rock Salt, Rock Gypsum, and Dolostone.