Rocks and Minerals Quiz

Quartz - Rock or Mineral

Mineral

Quartz - Hardness

7

Quartz - appearance

vitreous, white/clear, no streaks

Quartz - found in what rock

granite

Quartz - plant essential element

Silicon

Quartz - cleavage or fracture

concoidal fracture

Orthoclase - Rock or mineral

Mineral

Orthoclase - Hardness

6

Orthoclase - appearance

reddish/pinkish, white streaks, vitreous

Orthoclase - rock found in

granite, syenite, gneiss

Orthoclase - plant essential element

potassium

Orthoclase - cleavage or fracture

cleavage

Plagioclase - Rock or Mineral

Mineral

Plagioclase - hardness

6

Plagioclase - apppearance

white to grey, colorless streaks

Plagioclase - rocks found in

granite, basalt

Plagioclase - plant essential elements

calcium and sodium

Plagioclase - cleavage or fracture

cleavage planes

Muscovite - Rock or Mineral

Mineral

Muscovite - hardness

2-2.5

Muscovite - appearance

plastic, white/clear, white sheets, vitreous to pearly

Muscovite - rock found in

granite, gneiss, schist

Muscovite - plant essential element

potassium

Muscovite - cleavage or fracture

cleavage

Biotite - rock or mineral

mineral

Biotite - hardness

2.5-3

Biotite - appearance

thin black sheets, black/brown/dark, pearly to vitreous

Biotite - rock found in

granite

Biotite - plant essential element

potassium, iron

Biotite - cleavage or fracture

basal cleavage

Calcite - rock or mineral

mineral

Calcite - hardness

3

Calcite - appearance

white colorless, rhombus shaoes crystals, colorless streaks

Calcite - rock found in

calcium

calcite - cleavage or fracture

cleavage

dolomite - rock or mineral

mineral

dolomite - hardness

3.5-4

dolomite - appearance

pinkish white, greyish white

dolomite - rock found in

dolomitic rock

dolomite - plant essential element

phosphorus

dolomite - cleavage or fracture

basal cleavage

olivine - rock or mineral

mineral

olivine - hardness

6.5-7

olivine - appearance

olive to greyish green to brown, granular

olivine - rock found in

basalt

olivine - plant essential element

magnesium

olivine - cleavage or fracture

concoidal fracture

Hornblende - rock or mineral

mineral

Hornblende - hardness

5-6

Hornblende - appearance

black or dark green, long prism crystals

Hornblende - rock found in

granite, gneiss, schist

Hornblende - plant essential element

Calcium, iron, magnesium

Hornblende - cleavage or fracture

cleavage

Serpentine - rock or mineral

mineral

Serpentine - hardness

2-5

Serpentine - appearance

grey with green inclusions, not shiny, greasy luster

Serpentine - plant essential element

magnesium

Serpentine - cleavage or fracture

both

Hematite - rock or mineral

mineral

Hematite - hardness

5.5

Hematite - appearance

bluish grey to red, dark red streaks, metallic

Hematite - rock found in

sedimentary rocks

Hematite - plant essential element

iron

Hematite - cleavage or fracture

fracture

Limonite - rock or mineral

mineral

Limonite - hardness

5-5.5

Limonite - appearance

slight shine, dark brown to black, yellow/brown streaks

Limonite - rock found in

sedimentary rocks (ironstone, mudstone)

Limonite - plant essential elements

iron

Limonite - cleavage or fracture

fracture

Pyrite - rock or mineral

mineral

Pyrite - hardness

6-6.5

Pyrite - appearance

green-brownish, metallic, brass yellow, black streak

Pyrite - rock found in

igneous

Pyrite - plant essential elements

sulfur, iron

Pyrite - cleavage or fracture

concoidal fracture

Gypsum - rock or mineral

mineral

Gypsum - hardness

2

Gypsum - appearance

white to colorless or grey, vitreous, pearly to silky

Gypsum - rocks found in

limestone, shale

Gypsum - plant essential elements

calcium, sulfur

Gypsum - cleavage or fracture

cleavage

Gneiss - rock or mineral

rock

Gneiss - type of rock

metamorphic

Gneiss - appearance

streaks of black throughout white, shiny specs

Gneiss - minerals contained

quartz, hornblende

Gneiss - texture

somewhat coarse

Gneiss - metamorphisize from

granite, shale, limestone

Phyllite - rock or mineral

rock

Phyllite - type of rock

Metamorphic

Phyllite - appearance

thin sheets, colorless streaks, uniform color

Phyllite - minerals contained

quartz

Phyllite - texture

fine

Phyllite - metamorphasize from

shale

Schist - rock or mineral

rock

Schist - type of rock

Metamorphic

Schist - appearance

shiny metal specs, black specs

Schist - minerals contained

quartz

Schist - texture

fine

Schist - metamorphisize from

shale