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J145 - Agate after Shell $ 120 Dakhla area, Western Sahara, Morocco miniature - 4.8 x 3 x 2.5 cm ![]() ![]() ![]() Fossil shell that has been replaced by translucent golden agate. These are found on the surface, having weathered out of the surrounding rock formations. There are about 40 different species found at this deposit. Although they could have weathered out of different formations, they are all believed to be Eocene in age. Most are broken pieces and weathered and perfectly preserved examples such as this are uncommon, probably less than 5 percent of what is found. Fine quality example of an uncommonly seen species.
J146 - Agate after Shell $ 220 Dakhla area, Western Sahara, Morocco small cabinet - 5.4 x 3 x 2.6 cm ![]() ![]() ![]() Fossil shell that has been replaced by translucent golden agate. These are found on the surface, having weathered out of the surrounding rock formations. There are about 40 different species found at this deposit. Although they could have weathered out of different formations, they are all believed to be Eocene in age. Most are broken pieces and weathered and perfectly preserved examples such as this are uncommon, probably less than 5 percent of what is found. Fine quality large specimen.
J147 - Agate after Shell $ 150 Dakhla area, Western Sahara, Morocco small cabinet - 5.2 x 3 x 2.5 cm ![]() ![]() ![]() Fossil shell that has been replaced by translucent golden agate. These are found on the surface, having weathered out of the surrounding rock formations. There are about 40 different species found at this deposit. Although they could have weathered out of different formations, they are all believed to be Eocene in age. Most are broken pieces and weathered and perfectly preserved examples such as this are uncommon, probably less than 5 percent of what is found. Much larger than most.
J154 - Spinel $ 150 Mahenge, Morogoro, Tanzania thumbnail - 1.7 x 1.5 x 1.1 cm ![]() ![]() ![]() Octahedral pink Spinel crystal. Complete crystal with good luster. A tiny chip on one point, otherwise undamaged.
J156 - Spinel $ 150 Mahenge, Morogoro, Tanzania thumbnail - 2 x 1.7 x 1.2 cm ![]() ![]() ![]() Complete octahedral pink Spinel crystal with good color. Complete all around with some natural etching/edge wear.
J157 - Spinel $ 120 Ruaha, near Mahenge, Morogoro, Tanzania thumbnail - 1.6 x 1.5 x 1.5 cm ![]() ![]() ![]() Octahedral purple Spinel crystal from a new find. Complete all around and undamaged. Good luster and translucency.
J158 - Spinel $ 190 Ruaha, near Mahenge, Morogoro, Tanzania thumbnail - 2.6 x 1.9 x 1.6 cm ![]() ![]() ![]() ![]() ![]() Octahedral purple Spinel crystals from a new find. Complete all around with minor edge wear on one edge, otherwise undamaged. Good luster and translucency.
J163 - Topaz and Quartz after Orthoclase $ 200 Schneckenstein, Vogtlan, Germany thumbnail - 2.5 x 1.5 x 1.4 cm ![]() ![]() ![]() Psuedomorph of Quartz and Topaz after a double-terminated Orthoclase. These were found in the 1920s at the type locality for Topaz in Germany. Complete all around and undamaged specimen. These are rarely available, this one traded out of the collection of the Freiberg Mining University Museum.
J164 - Euchroite $ 250 Svatoduska, near Lubietova, Slovakia miniature - 3.5 x 2.3 x 2 cm ![]() ![]() ![]() Deep green Euchroite crystals to 2-3mm that contrast well against the dark brown matrix. Good crystals that are fairly well isolated.
C675 - Cuprite on Chrysocolla $ 1200 Mashamba West Mine, Katanga, Congo cabinet - 12 x 8 x 4 cm ![]() ![]() ![]() ![]() Cuprite crystals to 1.3cm on an uncommonly wide, flat Chrysocolla covered matrix. These came out years ago and are among my favorite Cuprite specimens as the Chrysocolla really sets off the Cuprite crystals. Crystals are undamaged with many more crystals present that are completely covered by the Chrysocolla. Areas of fibrous Malachite crystals enhance the look. Undamaged.
C677 - Cuprite on Chrysocolla $ 500 Mashamba West Mine, Katanga, Congo small cabinet - 8 x 6.5 x 4 cm ![]() ![]() ![]() Cuprite crystals to 1.9cm on a flat Chrysocolla covered matrix. These came out years ago and are among my favorite Cuprite specimens as the Chrysocolla really sets off the Cuprite crystals. Main crystal is sharp with just slight edge chipping in one area. There are also many more crystals present (can be seen along edges) that are completely covered by the Chrysocolla and could be exposed. Areas of fibrous Malachite crystals enhance the look.
C682 - Topaz $ 180 Ouro Preto, Minas Gerais, Brazil miniature - 3.5 x 1 x 0.8 cm ![]() ![]() ![]() Undamaged single gem 'Imperial' Topaz crystal. There are vertical surface striations but the inside is pure transparent gem.
C683 - Thaumasite $ 1500 N'Chwanning Mine, Kuruman, South Africa miniature - 3.4 x 3 x 1.3 cm ![]() ![]() ![]() ![]() Thaumasite is a rare mineral in the Ettringite group, the best were found at the N'Chwanning. This is a rare matrix specimen - you used to be able to find small single crystals but now even those are hard to find. Matrix specimens were always uncommon, and I have only ever had one before, a similar piece to this one that I paid a similar price to Katherine Woest about 15 years ago. Crystals are a transparent yellow and reach 5mm in diameter. White tufts of Xonotlite are dispersed between the Thaumasite crystals.
C688 - Hausmanite $ 900 N'Chwanning II Mine, Kuruman, South Africa small cabinet - 9 x 5.5 x 3 cm ![]() ![]() ![]() ![]() Matrix covered by Andradite crystals in turn coated by numerous well formed Hausmanite crystals. Clean and undamaged. Comes with a Wendel Minerals label that indicates it was formerly part of the Mayer collection.
J180 - Apatite $ 200 Namalulu, Tanzania miniature - 3.3 x 3.2 x 2.2 cm ![]() ![]() ![]() Large, chunky single Apatite crystal with a good blue/green color. Complete all around and translucent with a 'wet' luster. Undamaged with some natural indentaions from other crystals.
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