metamorphic rock pictures

Rock : lapis lazuli

Texture : non-foliated

Mineral composition: lazerite, calcite, and pyrite

Possible protoliths: limestone, dolostone,

Description: #1 looks like a burned black steak #2 similar look to the Grand Canyon color which is rusty red

Rock: Anthracite coal

Texture: non-foliated

Mineral composition: shale, sandstone, limestone

Possible Protoliths: Peat, lignite, bituminous coal

Description: soapy feel, black metallic luster, when powdered it is grey

Rock: gneiss

Texture: foliated

Mineral composition: feldspar, quartz, muscovite, Garnet

Possible Protoliths: mudstone, shale, slate, phyllite, schist, granite, or diorite

Description: black splotches, crystallize, pink, black, and brown grain shapes, flat cleavage, has black lines that look waves

Rock: slate

Texture: foliated

Mineral composition: quartz, biotite, chlorite

Possible Protoliths: mudstone or shale

Description: dull luster, breaks into flat sheets. Looks like a steak that was burned black, smooth feel

Rock: quartzite

Texture: non-foliated

Mineral composition: quartz, feldspar, mica

Possible Protoliths: sandstone

Description: orange, grey color, looks dirty, there is a slight shimmer

Rock: amphibolite

Texture: it can be either foliated or non-foliated

Mineral composition: quartz

Possible Protoliths: basalt, gabbro, or ultramafic igneous rock

Description: clear, black areas, crystal-like, looks like a kitchen countertop

Rock: slate

Texture: foliated

Mineral composition: same as number 1

Possible Protoliths: same as number 1

Description: a reddish or orange color similar to the grand canyon

Rock: Serpentinite

Texture: non-foliated

Mineral composition: antigorite, lizardite

Possible Protoliths: Basalt, Gabbro, or ultramafic rock

Description: different tinges of green, dull/ glassy, no visible grains, flat top/ smooth

Rock: marble

Texture: non-foliated

Mineral composition: calcite, dolomite, quartz, mica

Possible Protoliths: limestone

Description: a mixture of crystals of white and pink colors, and some impurities which are black splotches

Rock: Eclogite

Texture: non-foliated

Mineral composition: garnet, Kyanite, Quartz, or Coesite

Possible Protoliths: basalt, gabbro

Description: the main color is a light yellow with purple spots

Rock Name : Phyllite

Texture : foliated

Mineral composition: fine grained quartz, mica, and chlorite

Possible protolith: mudstone, shale, or slate

Description: dark grey with lighter specks rectangle and thick

Rock: marble

Texture: non-foliated

Mineral composition: same as 11

Possible Protoliths: same as 11

Description: white and crystal-like

Rock: mica schist

Texture: foliated

Mineral composition: mica, quartz, feldspar

Possible Protoliths: mudstone, shale, or slate

Description: sparkles, looks like an elf hat, looks silverish in the light

Rock: Soapstone

Texture: non-foliated

Mineral composition: Chlorite

Possible Protoliths: peridotite or ultramafic igneous rock

Description: talc-like feel, soft/smooth, square like a soap bar, grey and black