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McDougall Minerals is based near famous Bancroft, Ontario, at the heart of one of the best mineral regions in Canada

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's Image Gallery With 4041 Images

Halloysite Image

Images:

Halloysite: Al2Si2O5(OH)4
Pseudomalachite: Cu5(PO4)2(OH)4

Comments: Deep green pseudomalachite crystals on cuprous halloysite.
Location: Black Pine Mine, Philipsburg, Granite Co., Montana, USA. Scale: Crystal size 1-2 mm.
© John Veevaert

Halloysite Image

Images:

Halloysite: Al2Si2O5(OH)4

Comments: Pale tan sectile porcelaneous massive halloysite.
Location: Monroe County, Indiana, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Halotrichite Image

Images:

Halotrichite: Fe++Al2(SO4)4·22(H2O)

Comments: White, fibrous halotrichite on rock.
Location: Willi Agatz Mine, Dresden, Saxony, Germany. Scale: Picture size 4.5 cm.
© Thomas Witzke / Abraxas-Verlag

Halotrichite Image

Images:

Halotrichite: Fe++Al2(SO4)4·22(H2O)
Boothite: CuSO4·7(H2O)

Comments: Pale blue earthy boothite with white halotrichite.
Location: Copiapo, Atacama, Chile. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Halotrichite Image

Images:

Halotrichite: Fe++Al2(SO4)4·22(H2O)
Szomolnokite: Fe++SO4·(H2O)

Comments: Tan powdery szomolnokite crust on silky fibrous halotrichite with yellow metavoltine.
Location: Markey Mine, Red Canyon, San Juan County, Utah, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Halurgite Image

Images:

Halurgite: Mg2[B4O5(OH)4]2·(H2O)

Comments: Nearly opaque granular halurgite.
Location: Chelkar Salt Dome, Zapadno-Kazahstan, Kazakhstan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Hambergite Image

Images:

Hambergite: Be2BO3(OH)

Comments: Clear colorless prismatic crystal of hambergite.
Location: Imalo, near Mania, Madagascar. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Hammarite Image

Images:

Hammarite: Pb2Cu2Bi4S9 (?)

Comments: Metallic, white to gray hammarite with native bismuth in fluorite and quartz.
Location: Sadisdorf, Schmiedeberg, Erzgebirge, Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Hanksite Image

Images:

Hanksite: KNa22(SO4)9(CO3)2Cl

Comments: Translucent, hexagonal crystal of hanksite.
Location: Searles Lake, San Bernardino Co., California, USA. Scale: Crystal size 3 cm.
© Dave Barthelmy

Hannayite Image

Images:

Hannayite: (NH4)2Mg3H4(PO4)4·8(H2O)
Newberyite: Mg(PO3OH)·3(H2O)

Comments: Translucent white prismatic crystals of hannayite on brown newberyite.
Location: Skipton Caves, Victoria, Australia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Hannebachite Image

Images:

Hannebachite: 2CaSO3·(H2O)

Comments: Small .5 mm crystals of colorless hannebachite on matrix.
Location: Hannebach, Niederzissen, Eifel Mts, Rhineland-Palatinate, Germany. Scale: 35x35x24 mm.
© John Betts - Fine Minerals

Hapkeite Image

Images:

Hapkeite: Fe2Si

Comments: Reflected-light image of an area in the regolith clast showing distribution of FeNi metal and hapkeite (Fe2Si) metal grains in a feldspathic matrix, Msk, Maskelynite.. (Proc. Nat. Acad. Sci.,101:6848).
Location: Dhofar 280 (Dh-280) is a lunar fragmental breccia meteorite found in the Dhofar region of Oman, in April, 2001. Scale: See Image.
© PNAS

Haradaite Image

Images:

Haradaite: Sr4V++++4Si8O28

Comments: Translucent green crystal prism fragments of haradaite.
Location: Gambatesa Mine, Val Graveglia, Liguria, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Hardystonite Image

Images:

Hardystonite: Ca2ZnSi2O7
Esperite: PbCa3Zn4(SiO4)4
Franklinite: (Zn,Mn++,Fe++)(Fe+++,Mn+++)2O4

Comments: Pale brown porcelaneous esperite with pinkish gray hardystonite and black franklinite.
Location: Franklin, Sussex County, New Jersey. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Harkerite Image

Images:

Harkerite: Ca24Mg8Al2(SiO4)8(BO3)6(CO3)10·2(H2O)

Comments: B&W PPL image of harkerite (Hrk) and clintonite (Cln) aggregate with inclusions of spinel (Spl) in Crestmore marble #2A Mgt: magnetite, Anh: anhydrite, Cal: calcite.
Location: Low-pressure contact aureole in the Crestmore quarry, Riverside County, California, USA. (CanMin, v37:277). Scale: See Image.
© Canadian Mineralogist

Harmotome Image

Images:

Harmotome: (Ba,Na,K)1-2(Si,Al)8O16·6(H2O)

Comments: Root beer colored calcite covered with harmotome crystals from 1 mm to 1 cm.
Location: Strontian Hills, Strontian, Argyll, Scotland. Scale: 5.5 x 4.5 cm.
© John Veevaert

Harrisonite Image

Images:

Harrisonite: Ca(Fe++,Mg)6(PO4)2(SiO4)2

Comments: Glassy brown crystalline harrisonite grains in matrix.
Location: Arcedeckne Island, District of Franklin, Northwest Territories, Canada. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Hartite Image

Images:

Hartite: C20H34

Comments: White, translucent waxy crystalline hartite in wood.
Location: Santa Barbara Mine, San Giovanni Valdarno, Tuscany, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Hashemite Image

Images:

Hashemite: Ba(Cr,S)O4

Comments: Scanning electron micrograph of a hashemite crystal with common faces labeled. AmMin v68:1223.
Location: Discovered in specimens from building stone quarries, 60 km southeast of Amman, in west-central Jordan. Scale: Picture Size 100 µm.
© American Mineralogist

Hastingsite Image

Images:

Hastingsite: NaCa2(Fe++4Fe+++)Si6Al2O22(OH)2

Comments: Greenish-white fibrous mass of hastingsite.
Location: Calamite Mine, Elba, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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