Mineral Specimen

Blue metallic mineral specimen, possibly bornite or chalcopyrite

Bornite (Cu₅FeS₄) or chalcopyrite (CuFeS₂); exact identification requires testing

Botryoidal blue-green mineral specimen, likely hemimorphite

Hemimorphite, Zn4Si2O7(OH)2·H2O; possibly associated with calcite or smithsonite

Raw reddish-brown mineral specimen, possibly garnet

Garnet-group silicate, commonly almandine (Fe₃Al₂Si₃O₁₂); identification is uncertain from the blurred image

Tumbled blue-gray mineral specimen, likely labradorite

Labradorite, a calcium-rich plagioclase feldspar; approximate formula (Ca,Na)(Al,Si)₄O₈

Uncertain dark metallic mineral specimen

Possibly galena (lead sulfide, PbS), though the image is too blurred for reliable identification

Likely native metallic mineral specimen

Uncertain from photograph; possibly pyrite (FeS₂) or a sulfide-rich metallic ore

Blue quartz-like mineral specimen

Likely quartz (SiO₂), possibly dyed or coated; exact identification requires testing

Blue mineral specimen, likely kyanite

Kyanite — Al₂SiO₅

Blue mineral specimen, likely bornite (“peacock ore”)

Bornite, Cu5FeS4, possibly iridescent chalcopyrite (CuFeS2)

Blue-green glassy mineral specimen, likely turquoise-colored fluorite or dyed material

Uncertain; possible fluorite (CaF₂), chrysocolla, or dyed calcite/glass

Blue-green botryoidal mineral specimen, likely chrysocolla or chrysocolla-bearing quartz

Chrysocolla (hydrated copper phyllosilicate; variable composition, commonly approximated as (Cu,Al)₂H₂Si₂O₅(OH)₄·nH₂O)

Dark sulfide-bearing mineral specimen, possibly bornite or chalcopyrite

Likely chalcopyrite (CuFeS₂) or bornite (Cu₅FeS₄), with pale quartz or carbonate coating

Blue-green copper mineral specimen, likely chrysocolla or turquoise

Probable chrysocolla, hydrated copper phyllosilicate (Cu₂H₂Si₂O₅(OH)₄·nH₂O); turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O, is an alternative

Likely rough mineral specimen (possibly mica-rich)

Indeterminate from the image; a mica such as muscovite or biotite is one possibility

Polished blue glassy mineral specimen, likely sodalite or blue aventurine

Most consistent with sodalite (Na₈Al₆Si₆O₂₄Cl₂), though dyed quartzite or blue glass cannot be excluded from the photograph

Tumbled aqua glassy mineral specimen, likely chrysocolla or turquoise imitation

Uncertain from image; possible chrysocolla (hydrated copper aluminosilicate, variable composition) or dyed/man-made glass

Purple fluorite-bearing mineral specimen

Fluorite (calcium fluoride, CaF₂), possibly with quartz or chalcedony matrix

Blue slag-like mineral specimen, possibly bornite or chalcopyrite

Tentatively bornite (Cu5FeS4) or iridescent chalcopyrite (CuFeS2)

Polished blue-gray mineral specimen, likely galena-bearing ore

Galena (PbS), possibly mixed with quartz/calcite and secondary copper minerals

Quartz-rich mineral specimen, possibly druzy quartz with iron staining

Quartz (SiO₂), possibly coating a vesicular host rock

Gold-colored mineral specimen, likely pyrite or weathered mica schist

Tentatively pyrite (FeS₂); identification is uncertain from the obscured image

Pale green mineral specimen, likely prehnite or green calcite

Tentatively prehnite, Ca₂Al(AlSi₃O₁₀)(OH)₂; visual identification is uncertain from the photograph

Quartz-rich mineral specimen, possibly druzy quartz

Quartz (SiO₂), possibly with carbonate or feldspar matrix

Quartz-bearing dark mineral specimen

Quartz (SiO₂) on a dark host rock, possibly basalt or sulfide-rich ore

Blue-green copper mineral specimen, likely chrysocolla-bearing rock

Chrysocolla, hydrated copper silicate: approximately (Cu,Al)₂H₂Si₂O₅(OH)₄·nH₂O; possibly mixed with quartz or turquoise

Polished metallic ore/mineral specimen, possibly pyrite-bearing schist

Indeterminate from image; likely pyrite (FeS₂) with quartz and/or mica in a metamorphic matrix

Small tumbled brown mineral specimen

Likely quartz variety or iron-stained feldspar; exact identification is uncertain from the image

Polished blue-and-gold mineral specimen, likely labradorite

Labradorite, a calcium-sodium feldspar: (Ca,Na)(Al,Si)₄O₈

Blue-green copper mineral specimen, likely chrysocolla

Chrysocolla, hydrated copper phyllosilicate — approximately (Cu,Al)₂H₂Si₂O₅(OH)₄·nH₂O; possibly mixed with turquoise or malachite

Green copper-mineral specimen, likely chrysocolla or copper-bearing serpentine

Tentatively chrysocolla (hydrated copper phyllosilicate, approximately (Cu,Al)2H2Si2O5(OH)4·nH2O); exact identification requires testing

Red glassy mineral specimen, likely synthetic ruby or red spinel

Most consistent with synthetic corundum (Al₂O₃, ruby) or synthetic spinel (MgAl₂O₄); exact identification requires testing

Uncertain green-blue mineral specimens

Possibly chrysocolla or turquoise; exact identification requires testing

Mixed small mineral specimens, likely quartz varieties

Uncertain from the image; translucent pieces may be quartz (SiO₂), while golden-brown pieces could be iron-stained quartz or calcite

Tumbled mixed mineral specimens, likely quartz-rich rocks

Predominantly quartz (SiO₂), with possible jasper, agate, feldspar, and iron-oxide minerals

Blue-green raw mineral specimen, likely apatite

Fluorapatite, Ca₅(PO₄)₃F (probable; visual identification only)

Red-brown iron-rich mineral specimen, likely hematite/goethite

Hematite (Fe₂O₃), possibly mixed with goethite (FeO(OH)) and iron oxides

Quartz-rich gold-brown mineral specimen, possibly iron-stained quartz

Quartz (SiO₂), likely with limonite/goethite staining and minor sulfide or mica inclusions

Raw greenish mica-rich mineral specimen

Likely muscovite mica with quartz or feldspar inclusions; exact identification requires testing

Rough amber-like brown mineral specimen

Uncertain from photograph; possibly iron-stained quartz, common opal, or resinous amber

Honey calcite (calcareous mineral specimen)

Calcite, CaCO₃; likely honey/yellow calcite with minor iron-oxide staining

Quartz–feldspar pegmatite mineral specimen

Quartz (SiO₂) with potassium feldspar, albite, mica, and likely garnet or tourmaline

Unidentified pale stone or mineral specimen

Indeterminate; possibly massive quartz, calcite, or a light-colored feldspathic rock