mineral

Mixed Mineral and Fossil Collection

Multi-specimen assemblage (SiO2, CaCO3, FeS2, etc.)

Varied: Hardness 3-7 (Mohs); colors include purple (amethyst), white (quartz/calcite), gold (pyrite), and red (jasper); lustors range from vitreous to dull; crystal habits include hexagonal prisms and rhombohedrons.

Identified May 23, 2026More mineral →

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Physical properties

Formation & geological history

Diverse geological origins including hydrothermal veins, sedimentary deposits (fossils), and metamorphic formations across various eras from the Paleozoic to the Cenozoic.

Uses & applications

Educational purposes, crystal healing, decor, and starter kits for mineral collecting.

Geological facts

This collection contains several distinct types of specimens including a large quartz cluster, polished tiger's eye, amethyst druze, pyrite (fool's gold), and small fossils like crinoid stems.

Field identification & locations

Identify by testing hardness (quartz scratches glass) and acid reaction (calcite fizzes). Common in gift shops and rockhound starter kits worldwide.

Other mineral specimens

See all

Sandstone (with potential mineral staining/concretions)

Arenite (SiO2 based)

sedimentary

Epidote

Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)

metamorphic

Nephrite Jade

Nephrite

Mineral/Rock

Banded Gneiss (River Rock/Pebble)

Gneiss (specifically a banded variety often found as a river rock)

Metamorphic Rock

Biotite Schist

Biotite-rich Schist [K(Mg,Fe)3AlSi3O10(F,OH)2]

metamorphic

Green Apatite on Albite

Fluorapatite [Ca5(PO4)3F] on Albite [Na(AlSi3O8)]

mineral