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Fine Quality Mineral Specimens for Sale

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Ferrierite-Mg

Ferrierite
Mineral # 028 Available

Ferrierite-Mg from Kamloops Lake, near Monte Lake, British Columbia, Canada. These eye-catching fox-red colored asbestosform veins are associated with basalt, chalcedony and massive quartz. Unidentified amygdules.

This specimen measures about 6 cm x 4.5 cm x 4 cm.

Ferrierite-Mg # 028 – Price: $US 30.

Ferrohornblende (was Barkevikite)


Mineral # 345 Available

Ferrohornblende (was Barkevikite) as a black mass, together with massive amber Hiortdahlite, in pegmatite from Skudesundskjær, Langesundsfjord, Norway; other accessories include biotite and oligoclase, probably collected about 1920. Collecting at this island is now forbidden.

This specimen measures about 6 cm x 4.5 cm x 3.2 cm.

Ferrohornblende (was Barkevikite) # 345 – Price: $US 65.

Ferrokesterite (Ferrokësterite) originally Isostannite

Ferrokesterite_Isostannite
Mineral # 151 Available

This massive Ferrokesterite specimen is from the type locality, the famous Cligga Mine, Perranzabuloe, Cornwall, England. Purchased from Richard Barstow in 1976. This specimen includes a number of unidentified accessories.

This specimen measures about 5.2 cm x 4.5 cm x 2.2 cm.

Ferrokesterite (Ferrokësterite) Isostannite # 151 –
Price: $US 75.

Fluorite

Fluorite-1a Fluorite-1b
Fluorite-1c Fluorite-1d
Mineral # 029 Available

Fluorite from a small glory-hole, west-side Road cut, Highway 5 near Old Chelsea, Quebec, Canada. This is an example of perhaps the most complex fluorite crystals known, a cuboctahedron modified by pyritohedron or ?, light green with a purple "eye" in the middle. Fluoresces bright blue LW. Collected by National Museum Canada August 1974, specimen #74/40/7. From a pocket in a metamorphosed complex with accessory calcite and micro, silvery metallic cubic unknown.

This specimen measures about 1.8 cm x 1.8 cm x 1.8 cm. The single euhedral fluorite crystal measures 1.3 to 1.5 cm across.

Fluorite # 029 – Price: $US 1250.

Fluorite


Mineral # 276 Available

Fluorite, complex cubic habit in a delicate purple shade, together with minor aragonite. Very showy — collected from Múzquiz, Coahuila, Mexico before 1977.

This specimen measures about 6.2 cm x 3.7 cm x 4.3 cm.

Fluorite # 276 – Price: $US 45.

Fluorite




Mineral # 277 Available

Very pale green Fluorite dodecahedra to 2 cm on barite. Interesting example; collected from Madoc, Ontario, Canada before 1978.

This specimen measures about 5.7 cm x 3.9 cm x 3 cm.

Fluorite # 277 – Price: $US 100.

Fluorite


Mineral # 278 Available

Totally clear, colorless Fluorite cubes to 9 mm, resting on a bed of tiny calcite rhombs with a touch of quartz. Very showy — collected from Fort Wayne, Indiana, USA before 1979.

This specimen measures about 4.7 cm x 4.3 cm x 1.7 cm.

Fluorite # 278 – Price: $US 125.

Fluorite




Mineral # 279 Available

Wow! Delightful, esthetic, pale green fluorite crystals with some penetration twinning. Selectively, some surfaces have a slight dusting of doubly terminated sparkling micro quartz crystals. Very showy — collected from Weardale, Cumbria, England before 1981.

This specimen measures about 6.2 cm x 5.5 cm x 2.3 cm.

Fluorite # 279 – Price: $US 450.

Fluor-Richterite

Fluor-Richterite-3a
Fluor-Richterite-3b
Mineral # 030 Available

Fluor-Richterite from Wilberforce, Ontario, Canada. This doubly-terminated crystal is glassy but shows light pitting on the surface in spots.

This crystal specimen measures about 5.8 cm x 3.5 cm x 1.4 cm.

Fluor-Richterite # 030 – Price: $US 50.

Fluorthalénite-(Y)




Mineral # 330 Available

Outstanding very rare, large 1.5 cm glassy transparent pink Fluorthalénite-(Y) crystal from Hundholmen, Tysfjord, Nordland, Norway. Lighting in the second picture was adjusted to show the surface of the main crystal. Includes label from Mineralogisk-Geologisk Museum Oslo Norway. Collected before 1977. See also Thalénite-(Y)

This specimen measures about 7 cm x 3.5 cm x 3.4 cm.

Thalenite-(Y) # 330 – Price: $US 750.

Forsterite var. Peridot

Forsterite_var._Peridote-1a
Forsterite_var._Peridote-1b
Forsterite_var._Peridote-label
Mineral # 031 Available

Forsterite crystal from Møre og Romsdal, Norway, before 1978. A gemologist has told me that this would be good faceting material, but I like its anhedral orthorhombic form as a nice specimen. It weighs 21.87 grams or about 109.37 carats. This specimen also includes its label from the Oslo Mineralogy Museum and the purchase history from a Mr. Ekremseter in 1978.

This crystal specimen measures about 2.5 cm x 1.8 cm x 2.6 cm.

Forsterite var. Peridot # 031 – Price: $US 575.

Foshagite


Mineral # 396 Available

Rare Foshagite as a cream-colored crust from its type locality, the famous Crestmore Quarry, Crestmore, California, USA. Collected before 1978.

This specimen measures about 6.3 cm x 5.5 cm x 2.3 cm.

Foshagite # 396 – Price: $US 65.

Franconite

franconite-1
franconite-2
Mineral # 619 Available

Rare Franconite as tiny white spheres from its type locality, the now inaccessable Francon Quarry, St. Michel, Montreal, Quebec, Canada. Collected before 1980. Accessories strontianite. XRD GSC

This specimen measures about 6.4 cm x 3.7 cm x 2.5 cm.

Franconite # 619 – Price: $US 75.

Franconite

franconite-1
franconite-2
Mineral # 625 Available

Rich, rare Franconite, as tiny white spheres from its type locality, the now inaccessable Francon Quarry, St. Michel, Montreal, Quebec, Canada. Collected before 1980. Accessories dresserite, strontianite, weloganite. XRD GSC

This specimen measures about 7.1 cm x 4.5 cm x 2.5 cm.

Franconite # 625 – Price: $US 100.