Feldspar (specifically Orthoclase)
Potassium aluminum silicate (KAlSi3O8)
mineral
Category
Man Made Glass
Browse man made glass specimens identified by the Rock Identifier community.
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Rose Quartz
Silicon dioxide (SiO2)
mineral
Quartzite River Rock
Quartzite (SiO2)
metamorphic
Rose Quartz
Silicon dioxide (SiO2)
mineral
Rose Quartz
SiO2 (Silicon Dioxide)
mineral
Pink Feldspar (Orthoclase)
Orthoclase Feldspar (KAlSi3O8)
mineral
Pink Quartz (Inclusion-filled)
Silicon Dioxide (SiO2)
mineral
Rose Quartz
Silicon dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Basalt with Quartz Veins
Vesicular or aphanitic Basalt with SiO2 (Quartz) intrusions
Igneous
Olivine (Peridot)
Magnesium Iron Silicate (Mg,Fe)2SiO4
mineral
Chert (Chalcedony)
Cryptocrystalline Quartz (SiO2)
sedimentary
Quartzite River Rock
Quartzite
metamorphic
Lavender Jade and Snowy Quartz (Druzy)
NaAlSi2O6 (Jadeite) / SiO2 (Quartz)
metamorphic
Pyrite
Iron Sulfide (FeS2)
mineral
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Quartzite (River Pebble)
Quartzite (SiO2)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Rose Quartz
Quartz (SiO2) with trace amounts of titanium, iron, or manganese
Mineral
Microcrystalline Quartz (Chert/Agate)
Silicon Dioxide (SiO2)
sedimentary
Green Fluorite
Calcium Fluoride (CaF2)
mineral
Quartz / Rose Quartz
Silicon Dioxide (SiO2)
mineral
Yellow Quartz
SiO2 (Silicon Dioxide)
mineral
Green Banded Agate
Agate (Variety of Chalcedony/Quartz), SiO2
mineral
Red Chert / Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Pumice
Pumice (a highly vesicular volcanic glass)
igneous
Olivine in Basalt (Peridot)
Magnesium Iron Silicate (Mg,Fe)2SiO4 (Mineral) / Scoriaceous Basalt (Host Rock)
igneous
Quartz pebble with iron stains
Macrocrystalline Quartz (SiO2)
mineral
Milky Quartz Pebble
Crystalline Silicon Dioxide (SiO2)
mineral
Quartzite with Hematite staining
Quartzite (SiO2)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Milky Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Milky Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
mineral
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Quartzite pebble
Quartzite (SiO2)
metamorphic
Quartzite Pebble
Quartzite (primarily SiO2)
metamorphic
Quartz (Citrine or Iron-Stained variety)
Silicon Dioxide (SiO2)
mineral
Quartzite
Quartzite (SiO2)
metamorphic