mineral

Hemimorphite

Hemimorphite, Zn4(Si2O7)(OH)2·H2O

Hardness of 4.5 to 5 on the Mohs scale, vibrant blue to greenish-blue color, vitreous to sub-adamantine luster, and orthorhombic crystal system.

Identified October 23, 2026More mineral →

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Physical properties

Hardness of 4.5 to 5 on the Mohs scale, vibrant blue to greenish-blue color, vitreous to sub-adamantine luster, and orthorhombic crystal system.

Forms as a secondary mineral in the oxidation zone of zinc and lead ore deposits, typically associated with smithsonite and anglesite.

Used primarily as an ore of zinc and prized by collectors and jewelry makers for its striking blue tumbled or cabochon forms.

Named hemimorphite because its crystals are hemimorphic, meaning the two ends of the crystal terminate with different faces.

Identified by its distinctive bright blue color and association with carbonate deposits; commonly found in Mexico, China, and the USA.

Gneiss or Schist

Gneiss or Mica Schist with Garnet

Limonite

FeO(OH)•nH2O

Sandstone (with potential mineral staining/concretions)

Arenite (SiO2 based)

Feldspar

Feldspar Group (Tectosilicate, e.g., KAlSi3O8)

Tumbled granite

Granite, a coarse-grained felsic intrusive igneous rock

Pegmatite with Tourmaline and Quartz

Igneous Pegmatite