Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Category
Man Made Object (Coin)
Browse man made object (coin) specimens identified by the Rock Identifier community.
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Mineral
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
metamorphic
Rose Quartz
Rose Quartz (SiO2 with trace Ti, Fe, or Mn)
mineral
Olivine (Peridotite)
(Mg, Fe)2SiO4 (Magnesium Iron Silicate)
igneous
Zebra Jasper
Silicon Dioxide (SiO2) with various inclusions
metamorphic/sedimentary
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic
Peridot
Olivine (Magnesium Iron Silicate), (Mg, Fe)2SiO4
mineral
Note: Item is not a geological specimen
Guitar Components (Steel, Nickel, Plastic, Wood)
Synthetic/Consumer Product
Rough Diamond
Diamond (Native Carbon, C)
mineral
Dendritic Agate
Dendritic Agate (Silicon Dioxide with Manganese or Iron Oxide inclusions, SiO2)
mineral
Kimberlite
Kimberlite
igneous
Diamond (set in Gold)
Carbon (C)
mineral
Diamond (in Jewelry Setting)
Carbon (C) - Isometric-Hexoctahedral
mineral
Pink Quartz (Rose Quartz)
Silicon Dioxide (SiO2)
mineral
Rough Diamond
Carbon (C)
mineral
Basalt
Basalt (composition of plagioclase, pyroxene, and olivine)
igneous
Rose Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Diamond (or Lab-Grown Cubic Zirconia)
Carbon (C)
mineral
Moss Agate
Chalcedony (Silicon Dioxide - SiO2) with inclusions
Mineral
Banded Agate
Agate (Silicon Dioxide / SiO2)
mineral
Leopard Skin Jasper
Jasper (Silicon Dioxide with impurities), SiO2
sedimentary
Diamond (in a metal ring setting)
Diamond (Pure Carbon, C)
mineral
Diamond
Diamond (C)
mineral
Rose Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Dendritic Agate
Silicon Dioxide (SiO2) with Manganese or Iron Oxide inclusions
mineral
Peridot (Olivine)
Magnesium Iron Silicate (Mg,Fe)2SiO4
mineral
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic
Rough Diamond
Diamond (Native Element Carbon, C)
mineral
Demantoid Garnet on Matrix
Demantoid (variety of Andradite Garnet) - Ca3(Fe3+)2(SiO4)3
mineral
Pink Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Olivine
Olivine group (Mg, Fe)2SiO4
mineral
Atlantic Calico Scallop (Biogenic Aragonite/Calcite)
Argopecten gibbus (Chemical: CaCO3)
mineral
Olivine-bearing Basalt / Scoria
Mafic Igneous Rock (primarily (Mg, Fe)2SiO4)
igneous
Manganese-coated Sandstone
Clastic sedimentary rock with Manganese Oxide (often Pyrolusite or Psilomelane)
sedimentary
Lavender Jade and Snowy Quartz (Druzy)
NaAlSi2O6 (Jadeite) / SiO2 (Quartz)
metamorphic
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Pink Opal
Amorphous Hydrous Silica (SiO2·nH2O)
mineral
Carnelian (Chalcedony)
Silicon Dioxide (SiO2)
mineral