Mixed Mineral Specimens
Mixed Silicates, Oxides, and Phosphates (SiO₂, Ca₅(PO₄)₃(F,Cl,OH), Na₈Al₆Si₆O₂₄Cl₂, etc.)
mineral
Category
Mixed: Igneous And Sedimentary
Browse mixed: igneous and sedimentary specimens identified by the Rock Identifier community.
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Asphalt Concrete
Bituminous conglomerate
sedimentary
Mookaite Jasper
Silicified Radiolarite (SiO2 with iron impurities)
sedimentary
Copper Ore
Cupriferous Rock / Mixed Mineral Matrix
igneous
Quartz with impurities or Host Rock
SiO2 (Silicon Dioxide) with mixed silicates
mineral
Blue Apatite
Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)
mineral
Metallic sulfide mineral specimen, likely pyrite-bearing ore
Likely pyrite (FeS₂), possibly mixed with other sulfides or host rock
mineral
Yellow Ochre (Limonite)
Limonite (FeO(OH)qnH2O)
sedimentary
Tumbled polymictic stone, likely jasper-bearing conglomerate
Siliciclastic conglomerate with microcrystalline quartz (jasper/chert) and altered volcanic or feldspathic clasts
sedimentary
Jasper containing Agate (Jaspagate)
Silicon Dioxide (SiO2)
sedimentary
Breccia
Breccia (Clastic sedimentary rock)
sedimentary
Jasper / Agate with Petrified Wood Inclusion
SiO2
mineral
Granite
Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)
igneous
Weathered quartz-bearing rock fragment
Indeterminate; likely quartz-rich granite, gneiss, or pegmatitic rock
igneous
Purple Lepidolite with Quartz
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Pink Granite
Phaneritic Felsic Igneous Rock (Granite)
igneous
Pink Granite
Phaneritic Felsic Igneous Rock
igneous
Glacially transported granite and gneiss boulders
Granite (quartz–feldspar–mica); banded specimens likely gneiss
igneous and metamorphic
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Conglomerate (possibly concrete-like natural breccia)
Lithified, poorly sorted clastic rock with angular to subrounded mineral and rock fragments in a finer matrix
sedimentary
Mookaite Jasper
Silicified Radiolarite (SiO2)
sedimentary
Gravel or Pebble
Clastic Sedimentary Grain (typically composed of Quartz or Silicate minerals)
sedimentary
Granite Pebble
Intrusive Igneous Rock (Granite)
igneous
Greenstone / Diorite
Intermediate plutonic igneous rock
igneous
Tumbled granite or granitic gneiss
Granite/granitic gneiss, chiefly quartz, feldspar, and dark mica or amphibole
igneous
Pink Granite
Phaneritic Felsic Igneous Rock (Rich in K-Feldspar)
igneous
Polymictic conglomerate
Clast-supported conglomerate, typically quartz- and feldspar-rich in a dark matrix
sedimentary
Dragon Blood Jasper
Epidote with Red Jasper (Quartz-rich aggregate)
sedimentary
Puddingstone
Conglomerate
Sedimentary
Mixed beach gravel and sand
Unsorted siliciclastic sediment, chiefly quartz and rock fragments
sedimentary
Pebble with dark mineral inclusion
Likely granitic or gneissic quartz–feldspar pebble with a mafic inclusion; exact identification requires testing
igneous
K-feldspar Granite / Red Granite Fragment
Alkali feldspar granite (Plutonic igneous rock)
igneous
Quartz geode
Microcrystalline and crystalline quartz, SiO₂, likely with chalcedony and iron-oxide staining
mineral
Yellow Jasper
Jasper (Silicon Dioxide with Iron Hydroxide impurities, SiO2 + FeO(OH))
sedimentary
Concrete rubble
Anthropogenic conglomerate
sedimentary
Diorite
Diorite (plutonic igneous rock)
igneous
Conglomerate
Sedimentary Conglomerate
sedimentary
Granite / Feldspar gravel
Granite (felsic intrusive igneous rock)
igneous
River Pebbles (White Quartz and Basalt mix)
Mixed Clastic Sedimentary Assemblage (SiO2 and Mafic Volcanics)
sedimentary
Greenstone or Epidote-rich rock
Epidote or Chlorite schist/greenstone
metamorphic
Mixed Tumbled Gemstones and River Rocks
Mixed Decorative Stones (predominantly Silicon Dioxide - SiO2 variants)
Mixed (Igneous, Sedimentary, Metamorphic, and Minerals)
Granite (Pink/Potassium Feldspar rich)
Granite (K-feldspar rich intrusive igneous rock)
igneous