Mineral Group

Sodalite

Sodalite (Na8Al6Si6O24Cl2)

Sodalite

Na8(Al6Si6O24)Cl2

Feldspar (specifically Orthoclase)

Potassium aluminum silicate (KAlSi3O8)

Likely garnet gemstone

Garnet-group silicate; species cannot be determined from the photo (common red varieties include almandine, Fe₃Al₂(SiO₄)₃, and pyrope, Mg₃Al₂(SiO₄)₃).

Feldspar

Potassium Feldspar (KAlSi3O8)

Red garnet cabochon pendant

Likely almandine garnet, iron-rich garnet-group silicate (often approximated as Fe₃Al₂(SiO₄)₃); identification from the image is uncertain.

Likely garnet-bearing rock

Garnet in a dark metamorphic matrix; garnet is commonly almandine, Fe₃Al₂(SiO₄)₃

Tourmalinated Quartz / Tourmaline in Matrix

Silicate mineral group (Schorl / Quartz)

Small gray-green tumbled stone, likely serpentine

Serpentine-group minerals, approximately Mg₃Si₂O₅(OH)₄; identification is uncertain from the image alone

Green river-worn pebble, likely serpentinite

Serpentinite (serpentine-group minerals; identification is provisional from the photograph)

Likely rough garnet

Garnet group, possibly almandine (Fe₃Al₂(SiO₄)₃); identification is uncertain from the image

Quartz with Muscovite Mica

SiO2 with KAl2(AlSi3O10)(OH)2

Polished red garnet (likely almandine)

Almandine garnet, Fe₃Al₂(SiO₄)₃; identification from the photo is provisional

Likely garnet (rough crystal)

Garnet group; possibly almandine, (Fe₃Al₂(SiO₄)₃)

Likely garnet crystal

Garnet-group silicate; species cannot be determined from the image

Pale green stone, possibly serpentine

Serpentinite (dominantly serpentine-group minerals; visual identification is uncertain)

Quartz (Crystal Fragment)

Silicon Dioxide (SiO2)

Red garnet cabochon-style earrings

Likely almandine garnet (Fe₃Al₂(SiO₄)₃); the image alone cannot confirm the stone or whether it is natural or synthetic.

Red garnet (possible rough gem fragment)

Likely almandine garnet, Fe₃Al₂(SiO₄)₃; identification from the image is uncertain

K-Feldspar (Potassium Feldspar / Pink Feldspar)

KAlSi3O8 (Potassium Aluminum Silicate)

Likely rough garnet-bearing rock

Possibly almandine garnet in a mica-rich metamorphic matrix; identification is uncertain from the image alone.

Raw orange garnet (likely hessonite)

Grossular garnet, Ca₃Al₂(SiO₄)₃; variety hessonite

Rough garnet (likely almandine)

Almandine garnet, Fe₃Al₂(SiO₄)₃ (tentative visual identification)

Likely faceted garnet

Garnet group, commonly almandine (Fe₃Al₂(SiO₄)₃); identification from the photo is uncertain

Likely garnet-bearing rock (possibly almandine garnet in matrix)

Garnet, likely almandine (Fe₃Al₂Si₃O₁₂); host rock cannot be determined from the image

Likely garnet crystal (rough fragment)

Garnet group; possibly almandine, Fe₃Al₂(SiO₄)₃

Polished garnet bead (likely almandine)

Almandine garnet, Fe₃Al₂(SiO₄)₃ (tentative visual identification)

Likely garnet-bearing rock

Possibly almandine garnet in a mica-rich metamorphic matrix; identification is uncertain from the photo

Polished garnet cabochon (likely almandine)

Almandine garnet, Fe₃Al₂(SiO₄)₃ (tentative identification)

Likely garnet, possibly almandine

Garnet group; likely almandine, Fe₃Al₂(SiO₄)₃

Red garnet crystal (possible almandine)

Garnet group; likely almandine, Fe₃Al₂(SiO₄)₃

Raw Garnet (Hessonite / Spessartine)

Silicate mineral group (X3Y2(SiO4)3)

Garnet

Almandine/Pyrope Garnet (Silicate Mineral Group)

Likely garnet-bearing rock (possibly almandine garnet in dark matrix)

Garnet, probably almandine (Fe₃Al₂(SiO₄)₃); host rock is not identifiable from this image

Feldspar in Matrix

Feldspar group minerals in metamorphic or igneous matrix

Feldspar

Triclinic or Monoclinic Tectosilicate (e.g., KAlSi3O8)

Garnet-bearing rock (likely almandine garnet in a metamorphic matrix)

Almandine garnet, Fe₃Al₂(SiO₄)₃; host rock is uncertain from the image

Polished green tumbled stone, likely serpentine

Serpentinite (rock composed chiefly of serpentine-group minerals, approximately Mg₃Si₂O₅(OH)₄)

Yellow serpentine (likely serpentine-rich rock)

Serpentinite; chiefly serpentine-group minerals, such as antigorite, lizardite, and chrysotile

Likely garnet crystal fragment

Garnet-group mineral, possibly almandine (Fe₃Al₂(SiO₄)₃)

Polished green serpentine (often sold as “new jade”)

Serpentinite, composed chiefly of serpentine-group minerals such as antigorite, lizardite, or chrysotile; exact identification requires testing.

Potassium Feldspar

K-Feldspar (KAlSi3O8)