Marin Mineral Company - Selected Specimens

Selected Specimens

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K944 - Mimetite $ 400
Mt. Bonnie Mine, Northern Territory, Australia
miniature - 3.3 x 1.8 x 1.4 cm

(click on an image to enlarge)
Mimetite from Mt. Bonnie Mine, Northern Territory, Australia [db_pics/pics/K944a.jpg]

Mimetite from Mt. Bonnie Mine, Northern Territory, Australia [db_pics/pics/K944b.jpg]

Mimetite from Mt. Bonnie Mine, Northern Territory, Australia [db_pics/pics/K944c.jpg]

Mimetite from Mt. Bonnie Mine, Northern Territory, Australia [db_pics/pics/K944d.jpg]

Mimetite from Mt. Bonnie Mine, Northern Territory, Australia [db_pics/pics/K944e.jpg]

Floater specimen of Mimetite crystals attached to the sides of a small shard of Limonite matrix. The Mimetite crystals are chunky and reach 8mm in diameter.

K921 - Prehnite $ 350
Merelani Hills, Arusha, Tanzania
miniature - 3.5 x 3.3 x 3 cm

(click on an image to enlarge)
Prehnite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K921a.jpg]

Prehnite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K921b.jpg]

Prehnite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K921c.jpg]

Prehnite from Merelani Hills, Arusha, Tanzania [db_pics/pics/K921d.jpg]

Formation of large, tooth-like Prehnite crystals over a small amount of Graphite. Beautiful rosette-like formation that is complete all around. Slight chipping to some crystals but in good condition overall with good color and translucency.

K936 - Quartz var. Polyhedral Agate $ 900
Paraiba, Brazil
cabinet - 13 x 8 x 9 cm

(click on an image to enlarge)
Quartz var. Polyhedral Agate from Paraiba, Brazil [db_pics/pics/K936a.jpg]

Quartz var. Polyhedral Agate from Paraiba, Brazil [db_pics/pics/K936b.jpg]

Quartz var. Polyhedral Agate from Paraiba, Brazil [db_pics/pics/K936c.jpg]

Quartz var. Polyhedral Agate from Paraiba, Brazil [db_pics/pics/K936d.jpg]

Quartz var. Polyhedral Agate from Paraiba, Brazil [db_pics/pics/K936e.jpg]

Rare polyhedral Agate from Brazil, famous for the their angular geometric shapes rather than the more typical agate form of rounded nodules. How these formed is still debated but the general consensus is that they are the result of agate forming in the space between preexisting crystals of other minerals such as gypsum, barite, or anhydrite. These were found in the 1970s and the locality that used to produce them is now under water due to the construction of a dam. This is a good large example in excellent condition.

K134 - Copper $ 350
Cliff Mine, Keweenaw Co., Michigan, USA
miniature - 4.8 x 2.3 x 1.5 cm

(click on an image to enlarge)
Copper from Cliff Mine, Keweenaw Co., Michigan, USA [db_pics/pics/k134a.jpg]

Copper from Cliff Mine, Keweenaw Co., Michigan, USA [db_pics/pics/k134b.jpg]

Copper from Cliff Mine, Keweenaw Co., Michigan, USA [db_pics/pics/k134c.jpg]

Copper from Cliff Mine, Keweenaw Co., Michigan, USA [db_pics/pics/k134d.jpg]

Copper from Cliff Mine, Keweenaw Co., Michigan, USA [db_pics/pics/k134e.jpg]

Well crystallized Copper specimen with a good patina. Comes with an old Mike Bermann label.

AB101 - Aquamarine $ 480
Centervill, Boise Co., Idaho
miniature - 4.1 x 0.6 x 0.6 cm

(click on an image to enlarge)
Aquamarine from Centervill, Boise Co., Idaho [db_pics/pics/ab101a.jpg]

Aquamarine from Centervill, Boise Co., Idaho [db_pics/pics/ab101b.jpg]

Well terminated and gemmy single Aqua from Idaho. There is a shall indentation from another crystal on part of the back surface, otherwise perfect. Collected by Geary Murdock in 1985.

AB102 - Aquamarine $ 420
Centervill, Boise Co., Idaho
miniature - 3.7 x 0.6 x 0.5 cm

(click on an image to enlarge)
Aquamarine from Centervill, Boise Co., Idaho [db_pics/pics/ab102a.jpg]

Aquamarine from Centervill, Boise Co., Idaho [db_pics/pics/ab102b.jpg]

Well terminated and gemmy single Aqua from Idaho. Collected by Geary Murdock in 1985.

AB104 - Copper after Azurite $ 300
Copper Rose Mine, Grant Co., New Mexico, USA
miniature - 3.5 x 2.5 x 2 cm

(click on an image to enlarge)
Copper after Azurite from Copper Rose Mine, Grant Co., New Mexico, USA [db_pics/pics/ab104a.jpg]

Copper after Azurite from Copper Rose Mine, Grant Co., New Mexico, USA [db_pics/pics/ab104b.jpg]

Copper after Azurite from Copper Rose Mine, Grant Co., New Mexico, USA [db_pics/pics/ab104c.jpg]

Cluster of Azurite that has been completely replaced by Copper. Dominant main crystal with smaller crystals atttached to the front center. Complete on both sides with well defined, sharp edges and undamaged. A remarkable and fantastic specimen.

AB108 - Smithsonite $ 650
Broken Hill Mine, Kabwe, Zambia
miniature - 5 x 3.5 x 2.2 cm

(click on an image to enlarge)
Smithsonite from Broken Hill Mine, Kabwe, Zambia [db_pics/pics/ab108a.jpg]

Smithsonite from Broken Hill Mine, Kabwe, Zambia [db_pics/pics/ab108b.jpg]

Smithsonite from Broken Hill Mine, Kabwe, Zambia [db_pics/pics/ab108c.jpg]

Two large, double-terminated Smithsonite crystals that display dramatically on matrix. This locality is not known for volumes of specimens but I have seen the occasional really interesting specimen from here over the years and this counts as one of them. The largest Smithsonite is 3.6cm wide and the specimen displays well from either side. There are unfortunately small cleaves on the tip of each crystal, but they don't ditract that much, especially when considering the rarity of the piece and the overall visual impact.

AB113 - Tanzanite $ 3000
Merelani Hills, Arusha, Tanzania
miniature - 4 x 2.2 x 0.7 cm

(click on an image to enlarge)
Tanzanite from Merelani Hills, Arusha, Tanzania [db_pics/pics/ab113a.jpg]

Tanzanite from Merelani Hills, Arusha, Tanzania [db_pics/pics/ab113b.jpg]

Tanzanite from Merelani Hills, Arusha, Tanzania [db_pics/pics/ab113c.jpg]

Stunning bi-color Tanzanite crystal of yellow over vivid purple/blue. This crystal has superb luster and unusually uniform shape, retaining an even 7mm thickness all the way from the base to the termination. There are two chips, including one on the back termination, but the sheer pizzaz and dramatic coloration greatly overcomes it, it's that pretty and unique. The best bi-color Tanzanite I've ever had. Weighs 13 grams.

K967 - Dioptase $ 3500
Tsumeb, Namibia
small cabinet - 5.2 x 3.8 x 8 cm

(click on an image to enlarge)
Dioptase from Tsumeb, Namibia [db_pics/pics/K967a.jpg]

Dioptase from Tsumeb, Namibia [db_pics/pics/K967b.jpg]

Dioptase from Tsumeb, Namibia [db_pics/pics/K967c.jpg]

Large, gemmy Dioptase crystals on matrix. Crystals reach 1.5cm long. I ofund one micro chip on one edge, otherwise entirely undamaged. I bought this piece from Clive Queit about 20 years ago in Tucson. Beautiful large crystals.

K968 - Copper with Cuprite ~~$ 380~~ DISCOUNTED 50% OFF TO $ 190
Cole Shaft, Bisbee, Arizona, USA
cabinet - 9.5 x 7 x 4 cm

(click on an image to enlarge)
Copper with Cuprite from Cole Shaft, Bisbee, Arizona, USA [db_pics/pics/K968a.jpg]

Copper with Cuprite from Cole Shaft, Bisbee, Arizona, USA [db_pics/pics/K968b.jpg]

Copper with Cuprite from Cole Shaft, Bisbee, Arizona, USA [db_pics/pics/K968c.jpg]

Copper with Cuprite from Cole Shaft, Bisbee, Arizona, USA [db_pics/pics/K968d.jpg]

Specimen of solid Copper and Cuprite with octahedrons of Cuprite and areas of bright Copper everywhere you look.

K965 - Rhodochrosite $ 2400
N'Chwanning Mine, Kuruman, South Africa
miniature - 3.8 x 3 x 2 cm

(click on an image to enlarge)
Rhodochrosite from N'Chwanning Mine, Kuruman, South Africa [db_pics/pics/K965a.jpg]

Rhodochrosite from N'Chwanning Mine, Kuruman, South Africa [db_pics/pics/K965b.jpg]

Rhodochrosite from N'Chwanning Mine, Kuruman, South Africa [db_pics/pics/K965c.jpg]

Crystals of translucent Rhodochroiste over a small bit of Manganite matrix. Undamaged.

K964 - Cassiterite, Fluorite, Apatite, Quartz $ 1800
Hunan, China
cabinet - 15 x 8.5 x 4 cm

(click on an image to enlarge)
Cassiterite, Fluorite, Apatite, Quartz from Hunan, China [db_pics/pics/K964a.jpg]

Cassiterite, Fluorite, Apatite, Quartz from Hunan, China [db_pics/pics/K964b.jpg]

Cassiterite, Fluorite, Apatite, Quartz from Hunan, China [db_pics/pics/K964c.jpg]

Cassiterite, Fluorite, Apatite, Quartz from Hunan, China [db_pics/pics/K964d.jpg]

Cassiterite, Fluorite, Apatite, Quartz from Hunan, China [db_pics/pics/K964e.jpg]

Old Chinese Fluorite specimen from about 20-30 years ago or more when Chinese minerals were first coming out and unfortunately no specific mine name was available. The association with Cassiterite and purple Apatite is unusual. The Fluorite forms somewhat globular crystals to 2.5cm in size and are transparent. The Cassiterite reach 1.5cm and are highly lustrous. Both species are well distributed on the matrix and are undamaged. On the lower right side there are 4 purple Apatite crystals to 8mm in size.

K953 - Sphaerosiderite $ 125
Neunkirchen, Siegen-Wittgenstein, Arnsberg, Westphalia, Germany
small cabinet - 6 x 4.5 x 4 cm

(click on an image to enlarge)
Sphaerosiderite from Neunkirchen, Siegen-Wittgenstein, Arnsberg, Westphalia, Germany [db_pics/pics/K953a.jpg]

Sphaerosiderite from Neunkirchen, Siegen-Wittgenstein, Arnsberg, Westphalia, Germany [db_pics/pics/K953b.jpg]

Sphaerosiderite from Neunkirchen, Siegen-Wittgenstein, Arnsberg, Westphalia, Germany [db_pics/pics/K953c.jpg]

Botryoidal Sphaerosiderite lining vuggy matrix. Old specimen from the early 1900s.

K941 - Brucite $ 300
Killa Saifullah, Balochistan, Pakistan
cabinet - 10 x 5.5 x 4 cm

(click on an image to enlarge)
Brucite from Killa Saifullah, Balochistan, Pakistan [db_pics/pics/K941a.jpg]

Brucite from Killa Saifullah, Balochistan, Pakistan [db_pics/pics/K941b.jpg]

Brucite from Killa Saifullah, Balochistan, Pakistan [db_pics/pics/K941c.jpg]

Large, thick somewhat pinwheel formation of translucent yellow Brucite on a bit of matrix from recent finds in Pakistan. Undamaged and good from both sides, this is a very thick formation. The Brucite is well crystallized all around, characteristic of open pocket growth and not growth in tight, contacted seams as are most. An excellent example that is just plain more massive than most. (click on a page number to go to that page:)

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97	98	99	*100*	*101*	*102*	*103*	*104*	*105*	*106*	*107*	*108*
*109*	*110*	*111*	*112*	*113*	*114*	*115*	*116*	*117*	*118*	*119*	*120*
*121*	*122*	*123*	*124*	*125*	*126*	*127*	*128*	*129*	*130*	*131*	*132*
*133*	*134*	*135*	*136*	*137*	*138*	*139*	*140*	*141*	*142*

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