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1282 specimens found
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Sturmanite and Brucite
stock #Alec 14-266
N'chwaning Mine, Kalahari Fields, Kuruman
Kuruman, South Africa
14 x 6.8 x 7.6 CM (cabinet)
price: $1250
Spring 2014

A exceptional cabinet sized combo specimen hat presents well these two relatively rare species. Gemmy yellow Sturmanite in flattened blade habit crystals reach 1.8 CM scattered on a sparkling matrix of micro Manganites which is also the host for the spheres of blue green to white Brucite. The Brucite has the most desirable "wet" luster and shows good color gradations across the piece. In excellent condition and quite pretty for a "rarities mix". This piece almost certainly originated at the N'Chwanning mine (perhaps the only place this combo is noted) but the labeling we have for it is not that specific.
Scheelite on Quartz with Calcite, Cassiterite etc
stock #6.2-896
Yaogangxian Tungsten Mine, Yizhang County
Hunan, China
7.8 x 6.3 x 3.1 CM (cabinet)
price: $440
Spring 2014

If you know or collect Yaogangian, you can see this is a VERY fine Scheelite multi-specie piece! In excellent undamaged condition, this is densely packed with bright, lustrous and transparent/translucent Scheelites with honey brown color. This quality and esthetic is a rare for the locality. We selected this piece at the mine in 2006. There is nothing like this on the market now. Yaogangxian is the most famous and significant locality in China for collectors. Good Scheelite was always rare from there, this one is exceptional and the mine is now closed.
Malachite psudo after Azurite (huge crystal)
stock #Alec3-408
Milpillas Mine, Cuitaca, Municipio de Santa Cruz
Sonora, Mexico
8.5 x 5.7 x 3.2 CM (cabinet)
price: $1400
Spring 2014

An extremely large (over 3-1/2 inches) single compound crystal of Azurite is partly altered to a silky green Malachite, yet still has large areas of deep blue. Somewhat blocky and crude but with strong and clear form this is an impressive piece and one of the largest single crystal psudos that have come from this prolific location. Esthetic and with strong display presence, this was mined in 2011. A very good value.
Andradite with Calcite
stock #Alec-14-385
N'chwaning Mine, Kalahari Fields, Kuruman
Northern Cape Province, South Africa
2.8 x 2.5 x 1.4 CM (thumbnail)
price: $330
Spring 2014

An unusually good, sizable crystal aggregate of Kalihari Andradite Garnet. The great NChwaning mine is famous for its red colored minerals, especially the Rhodochrosites. Many other less colorful species from here are dusted with tiny bright red Andradites, typically micro crystals. This piece shows well formed distinct and colorful crystals very sizable not like what is usually seen. In excellent condition.
Realgar in and on Calcite
stock #4.2-107.1
Shimen (Jiepiayu) Mine, Shimen County, Changde Prefecture
Hunan, China
7 x 5.5 x 4.8 CM (cabinet)
price: $145
Spring 2014

A very attractive bright specimen that has become sort of a modern classic from the Realgar mine at Shimen. The calcite is milky white to clear yellow and glassy, while the Realgar is brilliant red. This is clearly seen inside the Calcites and extending to the surface in sharp form. In good condition with some bruising that is not distracting, specimen like this one are a great value for building collections with attractive pieces that are fine yet affordable.
Cerussite (gemmy V twins)
stock #Alec 12-072
Tsumeb
Otavi-Bergland district, Oshikoto, Namibia
5.2 x 4 x 2.1 CM (small cabinet/ large miniature)
price: $540
Spring 2014

Tsumeb Cerussite can be incredible, but its usually very damaged or crazy expensive. This is a far better than average piece (but not perfect with inspection) with glassy luster, elegant striations, and is formed by 2 "V" twins that abut each other. The main large crystals are in good undamaged condition, there is chipping on the bottom and end of the small crystals that is seen. The chipping is not glaring, only noted if you look carefully. The clarity is gem grade and very sharp, with a warm smokey color. Not perfect, but not 8,000.00$ either!
Gratonite (rare Lead-As Sufosalt)
stock #13.1-379
Excelsior Mine, Cerro de Pasco, Pasco Province
Pasco Department, Peru
5.4 x 3.2 x 2 CM (small cabinet/large miniature)
price: $400
Spring 2014

Gratonite when available is usually in thumbnail sized pieces. This is a more sizable piece and well crystallized. The best were found over 50 years ago and Pasco is the only source for fine specimens. Branching crystal aggregates to 2.5 CM cover most of a sulfide matrix, composed of 3-5mm sized individuals. The Gratonite has the dull to slightly lustrous lead-silver color that is classic for these.
Wulfenite with Mimetite etc
stock #6.2-1090
Eureka, Eureka District
Nevada, United States
5 x 3.8 x 3.9 CM (miniature)
price: $200
Spring 2014

A pretty and complex "mystery" piece, from Schortmann's minerals in the early 1960's. The label locale given is "Eureka, Nevada", which is not well known known for Wulfenite. A bright orange to red aggregate of Wulfenite showing several habits, all on a mix of many unusual micro crystals including Mimetite and 3 unidentified species that look like phosphate minerals. Is this a small or lost locality? There are several mines with other Lead secondary minerals in Eureka. This is different from most all Nevada Wulf. I have seen too. Schortmann's were very careful about correct localities and they did get their stock from many of the great prospectors/collectors of the day. For wulfenite collectors or those who like doing research on oddities, this is a very intriguing specimen.
1282 specimens found
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 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 | 143 | 144 | 145 | 146 | 147 | 148 | 149 | 150 | 151 | 152 | 153 | 154 | 155 | 156 | 157 | 158 | 159 | 160 | 161 |