Magnesiokatophorite

Mineral # 436 Available

Magnesiokatophorite as black crystals to about 1 cm., from the classic Kipawa River occurrence, Kipawa alkaline complex, Sheffield Lake, Villedieu Township, Témiscamingue Co., Quebec, Canada. Collected about 1972 by Gary Ansell, GSC. Includes original GSC label.

This specimen measures about 4.2 cm x 2.2 cm x 2.5 cm.

Magnesiokatophorite # 436 – Price: $US 75.

Magnetite




Mineral # 395 Available

Super aesthetic! — well defined Magnetite as black dodecahedral crystals to about 1 cm+, with sharp pyrite pseudo octahedra; from the famous Brosso Mines, Ivrea, Italy. Collected before 1981. The first photo shows the whole specimen which is more or less "L"-shaped. The last picture shows the bottom of the specimen which normally serves as a built-in foot.

This specimen measures about 5.5 cm x 3.5 cm x 5.2 cm.

Magnetite # 395 – Price: $US 395.

McGuinnessite

Mineral # 175 Available

McGuinnessite as a turquoise blue micro crystalline coating and as spherules, from Red Mountain, Mendocino Co., California, USA. Confirmed by XRD and probe by Stenson and Traill of the GSC. Collected 1977.

This specimen measures about 5.8 cm x 4 cm x 3 cm.

McGuinnessite # 175 – Price: $US 45.

Meliphanite


Mineral # 084 Available

Meliphanite from Stokkø Island, Stoksund, Langesundsfjord, Norway; collected 1880 by Anders Andersen. The label shown is included. Type co-locality. This rare honey-yellow meliphanite is on a syenite matrix with a variety of accessory minerals.

Under long-wave UV, the yellow meliphanite fluoresces an attractive, quite intense, deep purplish-pink. There are also blebs of other minerals fluorescing deep orange and others showing a pale yellowish-white fluorescence. Nothing fluoresces under short-wave UV.

This display specimen measures about 11.4 cm x 9.6 cm x 3 cm. The largest cleavage measures about 5 cm x 3 cm. About 50% of the specimen is meliphanite.

Meliphanite #084 – Price: $US 495.

Mendipite

Mineral # 288 Available

Rare, beige fibrous crystalline mass, from Merehead Quarry, Shepton Mallet, Mendip Hills, Somerset, England. A unique piece, from a famous locality, collected before 1976.

This specimen measures about 4 cm x 3.2 cm x 3.2 cm.

Mendipite # 288 – Price: $US 60.

Meneghinite

Mineral # 375 SOLD

Metallic gray, massive Meneghinite showing some striations and cleavage; accessory yellow-brown sphalerite. From the Mineral King Mine (Toby Creek), near Invermere, British Columbia, Canada; collected before 1978.

This specimen measures about 5.5 cm x 3.5 cm x 3.1 cm.

Meneghinite


Mineral # 376 Available

Gray metallic, acicular Meneghinite to 8 mm; accessory quartz +++. From the type locality, the ancient Bottino Mine, Ruosina, Lucca, Italy; collected before 1979.

This specimen measures about 6.5 cm x 4.5 cm x 3.1 cm.

Meneghinite # 376 – Price: $US 100.

Metacinnabar

Mineral # 177 Available

Metacinnabar subhedral micro crystals from the Mount Diablo Mine, Contra Costa Co., California, USA. Accessories include mercury, calcite, cinnabar on quartz. Collected before 1978.

This specimen measures about 4 cm x 2.6 cm x 1.3 cm.

Metacinnabar # 177 – Price: $US 25.

Metavivianite

Mineral # 444 Available

Outstanding Metavivianite as yellow-green plates, from Rapid Creek, Yukon Territory, Canada; GR 197002. Accessories include gormanite, siderite, Apatite, quartz et al. Collected 1979 Paddy Collins.

This specimen measures about 6.0 cm x 3.3 cm x 1.5 cm.

Metavivianite # 444 – Price: $US 495.

Metavivianite

Mineral # 445 Available

Fine Metavivianite as olive-green plates, from Rapid Creek, Yukon Territory, Canada; GR 197002. Accessories include childrenite, siderite, wardite, quartz, lazulite et al. Collected 1979 Paddy Collins.

This specimen measures about 4.7 cm x 4.2 cm x 2.1 cm.

Metavivianite # 445 – Price: $US 150.

Metazeunerite

Mineral # 195 Available

Metazeunerite sharp, bright, grass-green micro crystals filling cavities in quartz and limonite matrix, from the Wheal Edward, St. Just, Cornwall, England. Collected before 1976, from Richard Barstow Oct. 1976.

This attractive specimen measures about 6 cm x 4.5 cm x 3.5 cm.

Metazeunerite # 195 – Price: $US 75.

Microcline var. Amazonite

Mineral # 047 SOLD

Microcline variety Amazonite from Crystal Peak, Colorado, USA. Collected before 1976.

This specimen measures about 1.5 cm x 1.5 cm x 2 cm.

Microcline var. Amazonite # 047 –

Millerite


Mineral # 224 Available

Acicular Millerite from now closed Hwy 27 cut, Halls Gap, Lincoln Co., Kentucky, USA. A very rich piece with accessory quartz. Collected before 1979.

This specimen measures about 4.5 cm x 2.4 cm x 3 cm.

Millerite # 224 – Price: $US 75.

Millerite

Mineral # 412 Available

Millerite as seldom found – as a solid vein showing nice perfect cleavages, originally cutting chalcopyrite. From the 1080 foot level, INCO Levack West Mine, Levack (near Sudbury), Ontario, Canada. Collected 30 June, 1976.

This specimen measures about 2.7 cm x 2.4 cm x 1.3 cm.

Millerite # 412 – Price: $US 75.

Millerite

Mineral # 382 Available

Millerite as seldom found – as a solid vein showing nice perfect cleavages, originally cutting chalcopyrite. From the 1080 foot level, INCO Levack West Mine, Levack (near Sudbury), Ontario, Canada. Collected 30 June, 1976.

This specimen measures about 2.5 cm x 1.2 cm x 1.2 cm. Includes a second smaller piece ca. 1 x 1 x 1 cm.

Millerite # 382 – Price: $US 50.

Millerite

Mineral # 383 Available

Millerite as seldom found – as a solid vein showing nice perfect cleavages, originally cutting chalcopyrite. From the 1080 foot level, INCO Levack West Mine, Levack (near Sudbury), Ontario, Canada. Collected 30 June, 1976.

This specimen measures about 4.0 cm x 2.5 cm x 1.4 cm. Includes a second smaller nice cleavage piece ca. 1 x 1 x 1 cm.

Millerite # 383 – Price: $US 60.

Mimetite var. Campylite

Mineral # 179 Available

Mimetite var. Campylite from Dry Gill Mine, Caldbeck Fells, Co. Cumberland, England. Accessory coronadite. Collected before 1976.

This specimen measures about 6 cm x 6 cm x 3 cm.

Mimetite var. Campylite # 179 –
Price: $US 95.

Mimetite



Mineral # 325 Available

Interesting; attractive, colorless to honey-colored fan- or sheaf-like crystal aggregates of mimetite up to about 5 mm; from the Tsumeb Mine, Tsumeb, Namibia. Accessories include quartz and dolomite crystals, plus some others. Both sides are different, but equally interesting, especially under the microscope. This is an older specimen, obtained from Prosper Williams, October, 1978.

This specimen measures about 5.4 cm x 4.5 cm x 2.9 cm.

Mimetite # 325 – Price: $US 185.