Chrysocolla in Malachite
Cu2CO3(OH)2 (Malachite) / Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (Chrysocolla)
mineral
Category
Minerals
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Limonite (Ironstone)
Limonite (Hydrated iron(III) oxide-hydroxide, FeO(OH)·nH2O)
mineral
Turquoise in Matrix
Hydrated phosphate of copper and aluminium: CuAl6(PO4)4(OH)8·4H2O
mineral
Beryl (var. Aquamarine/Blue Beryl) in Quartz Matrix
Beryllium Aluminum Silicate (Be3Al2Si6O18)
mineral
Granite Pebble
Granite (Phaneritic Quartz-Feldspar Plutonic Rock)
igneous
Pink Granite
Phaneritic Intrusive Igneous Rock (Granite)
igneous
Shale
Argillite / Shale
sedimentary
Dalmatian Stone
Dalmatian Jasper (a trade name for an igneous microcrystalline rock composed mostly of feldspar, quartz, and dravite)
igneous
Pink Granite (Alkali-feldspar Granite)
Felsic intrusive igneous rock (composition: KAlSi3O8, SiO2, NaAlSi3O8)
igneous
Shale
Shale (Lutite)
sedimentary
Shale or Slate with Quartz Veins
Shale (fine-grained clastic sedimentary rock) or Slate (low-grade metamorphic rock formed from shale) with Quartz (SiO2) veins
Metamorphic, likely Sedimentary with Quartz veins
Blue Lace Agate
Silicon Dioxide (SiO2)
mineral
Hematite Nodules (Moqui Marbles or similar)
Iron oxide (Fe2O3)
mineral
Sunstone
Plagioclase Feldspar (Na,Ca)(Si,Al)4O8
mineral
Epithermal Gold Ore (in Quartz/Rhyolite matrix)
Auriferous Quartz (Au + SiO2)
mineral
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
mineral
Granite
Phaneritic Felsic Intrusive Igneous Rock
igneous
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Malachite
Malachite (Copper Carbonate Hydroxide, Cu2CO3(OH)2)
mineral
Aquamarine
Beryl (Be3Al2Si6O18)
gemstone
Pink Granite Pebble
Granite (Phaneritic igneous rock)
igneous
Diorite
Intermediate plutonic igneous rock
igneous
Kimberlite with Diamonds
Kimberlite (ultramafic potassic igneous rock)
igneous
Granite (Alkali-feldspar Granite)
Felsic Plutonic Rock (Primary minerals: Quartz SiO2, Orthoclase KAlSi3O8, Plagioclase (Na,Ca)AlSi3O8)
igneous
Diorite
Intermediate Phaneritic Igneous Rock (Diorite)
igneous
Diorite (Salt and Pepper Rock)
Diorite
igneous
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Granite
Phaneritic Plutonic Felsic Rock (KAlSi3O8 + SiO2 + NaAlSi3O8)
igneous
Diorite
Diorite
igneous
Diorite
Phaneritic Intermediate Igneous Rock
igneous
Greenstone
Metabasalt
metamorphic
Diorite
Intermediate plutonic igneous rock
igneous
Banded Gneiss with Quartz Veining
Gneiss (High-grade Regional Metamorphism)
metamorphic
River Rocks (Polished River Pebbles)
Stream-rounded clastic sediments
Mixed (Sedimentary, Igneous, and Metamorphic)
Diorite
Diorite (Intermediate intrusive igneous rock)
igneous
Diorite
Diorite
igneous
Granite
Phaneritic plutonic felsic rock (primarily Quartz, Feldspar, and Mica)
igneous
Ruby
Corundum (Al2O3)
mineral
Banded Iron Formation (BIF)
Banded Iron Formation
sedimentary
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
mineral
Red Granite
Phaneritic Felsic Igneous Rock
igneous
Gneiss
Gneiss (high-grade metamorphic rock typically composed of quartz, feldspar, and mica)
metamorphic