Properties & Information
Himalayan Quartz
Himalayan QuartzSCIENCE / MINERALOGYHimalayan Quartz is a locality trade term for natural quartz, SiO₂, collected from high-elevation mountain regions of the Himalaya and adjacent ranges. Mineralogically it is ordinary quartz,...
Himalayan Quartz
Himalayan QuartzSCIENCE / MINERALOGYHimalayan Quartz is a locality trade term for natural quartz, SiO₂, collected from high-elevation mountain regions of the Himalaya and adjacent ranges. Mineralogically it is ordinary quartz,...
Hilutite
HilutiteSCIENCE / MINERALOGYHilutite is a trade name for quartz-rich material from Sri Lanka containing visible inclusions reported as zircon, goethite, and garnet. The host is quartz, SiO₂, while red, pink,...
Hilutite
HilutiteSCIENCE / MINERALOGYHilutite is a trade name for quartz-rich material from Sri Lanka containing visible inclusions reported as zircon, goethite, and garnet. The host is quartz, SiO₂, while red, pink,...
Hiddenite
HiddeniteSCIENCE / MINERALOGYHiddenite is the green gem variety of spodumene, LiAlSi₂O₆, traditionally associated with chromium-colored material first described from North Carolina. Spodumene crystallizes in the monoclinic system and has perfect...
Hiddenite
HiddeniteSCIENCE / MINERALOGYHiddenite is the green gem variety of spodumene, LiAlSi₂O₆, traditionally associated with chromium-colored material first described from North Carolina. Spodumene crystallizes in the monoclinic system and has perfect...
Heulandite
HeulanditeSCIENCE / MINERALOGYHeulandite is a zeolite-group name historically used for several closely related hydrated aluminosilicate minerals, most commonly heulandite-Ca. It crystallizes in the monoclinic system and forms tabular, coffin-shaped, bladed,...
Heulandite
HeulanditeSCIENCE / MINERALOGYHeulandite is a zeolite-group name historically used for several closely related hydrated aluminosilicate minerals, most commonly heulandite-Ca. It crystallizes in the monoclinic system and forms tabular, coffin-shaped, bladed,...
Herkimer Diamond
Herkimer DiamondSCIENCE / MINERALOGYHerkimer Diamonds are exceptionally clear, naturally double-terminated quartz crystals from Herkimer County and surrounding areas of New York. They are quartz, SiO₂, not diamond. Many show 18...
Herkimer Diamond
Herkimer DiamondSCIENCE / MINERALOGYHerkimer Diamonds are exceptionally clear, naturally double-terminated quartz crystals from Herkimer County and surrounding areas of New York. They are quartz, SiO₂, not diamond. Many show 18...
Hemimorphite
HemimorphiteSCIENCE / MINERALOGYHemimorphite is a hydrated zinc silicate mineral, Zn₄Si₂O₇(OH)₂·H₂O. It crystallizes in the orthorhombic system and is named for hemimorphism, meaning opposite ends of an ideal crystal develop different...
Hemimorphite
HemimorphiteSCIENCE / MINERALOGYHemimorphite is a hydrated zinc silicate mineral, Zn₄Si₂O₇(OH)₂·H₂O. It crystallizes in the orthorhombic system and is named for hemimorphism, meaning opposite ends of an ideal crystal develop different...