Jeff Weissman's Image Gallery

Images from Jeff Weissman

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Jeff Weissman's Image Gallery With 2354 Images

Graftonite Image

Images:

Graftonite: (Fe++,Mn,Ca)3(PO4)2
Heterosite: Fe+++PO4

Comments: Whitish graftonite intergrown with dark purple to brown heterosite.
Location: Grafton, Grafton County, New Hampshire, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Graftonite Image

Images:

Graftonite: (Fe++,Mn,Ca)3(PO4)2
Heterosite: Fe+++PO4

Grandidierite Image

Images:

Grandidierite: (Mg,Fe++)Al3(BO4)(SiO4)O

Comments: Translucent blue-green crystalline grandidierite in pegmatite.
Location: Vohibola, Madagascar. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Grandidierite Image

Images:

Grandidierite: (Mg,Fe++)Al3(BO4)(SiO4)O

Comments: Translucent blue-green crystalline grandidierite in pegmatite.
Location: Vohibola, Madagascar. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Grantsite Image

Images:

Grantsite: Na4CaxV++++2xV+++++12-2xO32·8(H2O)
Tyuyamunite: Ca(UO2)2V2O8·5-8(H2O)

Comments: Dark olive green waxy coatings of grantsite with greenish-yellow tyuyamunite and sandstone.
Location: F-33 Mine, near Grants, Valencia County, New Mexico, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Grantsite Image

Images:

Grantsite: Na4CaxV++++2xV+++++12-2xO32·8(H2O)
Tyuyamunite: Ca(UO2)2V2O8·5-8(H2O)

Grechishchevite Image

Images:

Grechishchevite: Hg3S2(Br,Cl,I)2

Comments: Red grechishchevite coatings on calcite.
Location: Kadyrel' Hg occurrence, Oorash-Khem River Valley, Uyuk Range, Pii-Khem District, Tuva Republic, Eastern-Siberian Region, Russia. Scale: Picture Size 2 mm.
© Jeff Weissman / Photographic Guide to Mineral Species

Grechishchevite Image

Images:

Grechishchevite: Hg3S2(Br,Cl,I)2

Greenalite Image

Images:

Greenalite: (Fe++,Fe+++)2-3Si2O5(OH)4

Comments: Dark olive-green massive greenalite with metallic galena.
Location: La Union Mine, Murcia, Spain. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Greenalite Image

Images:

Greenalite: (Fe++,Fe+++)2-3Si2O5(OH)4

Comments: Dark olive-green massive greenalite with metallic galena.
Location: La Union Mine, Murcia, Spain. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Grimaldiite Image

Images:

Grimaldiite: Cr+++O(OH)

Comments: Grimaldiite, variety merumite, stream rounded crystalline grains.
Location: Merume River, Mazaruni-Potaro District, Guyana. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Grimaldiite Image

Images:

Grimaldiite: Cr+++O(OH)

Griphite Image

Images:

Griphite: Ca(Mn,Na,Li)6Fe++Al2(PO4)6(F,OH)2

Comments: Dark red-brown vitreous crystalline massive griphite.
Location: Sitting Bull Mine, Pennington County, South Dakota, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Griphite Image

Images:

Griphite: Ca(Mn,Na,Li)6Fe++Al2(PO4)6(F,OH)2

Groutite Image

Images:

Groutite: Mn+++O(OH)

Comments: Prismatic crystals of groutite in white marble.
Location: Talcville, Saint Lawrence County, New York, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Groutite Image

Images:

Groutite: Mn+++O(OH)

Grunerite Image

Images:

Grunerite: [ ]Fe++7Si8O22(OH)2

Comments: Olive green fibrous crystal aggregates of grunerite in rock matrix.
Location: Michigamme, Iron County, Michigan, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Grunerite Image

Images:

Grunerite: [ ]Fe++7Si8O22(OH)2

Guanajuatite Image

Images:

Guanajuatite: Bi2Se3

Comments: Prismatic crystalline guanajuatite, altering to a blue crust, in white calcite.
Location: Falun, Kopparberg, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Guanajuatite Image

Images:

Guanajuatite: Bi2Se3

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