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Mineral Specimens with Grossular
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9.0 x 7.7 x 3.6 cm. You do not see Italian garnet specimen around much, since there just are not many around these days -- but they are a European "classic." Here, you have flashy, gemmy, deep wine-red Hessonite garnet crystals to 0.8 cm, some of them showing interesting "ziggurat" terracing. Ex. Bill Larson Garnet collection.
7.7 x 6.1 x 4.1 cm. From the alpine veins of Val d’Ala, this classic matrix specimen is covered in glassy and gemmy, cinnamon-colored grossular garnets, to .8 cm across. They are SPARKLING and beautiful! Associated with the garnets are a few glassy and gemmy, pastel green, diopside crystals, to 1.0 cm in length. The dark green mineral underlying the garnet is clinochlore, a member of the mica family, in crystals to.3 cm across. Obviously, this is an older specimen. Ex. Robert Gage and Robert Linck Collections.
2.6 x 2.1 x 1.8 cm, 2.3 x 2.1 x 1.9 cm. From Mali, two sharp yellow garnets of textbook form. From a knowledgeable collector: “Ugrandites are a rare intermediate between andradite and grossular." In other words, Mali Garnet.
7.5 x 4.6 x 1.5 cm. A fine miniature grossular from the Jeffrey Mine, featuring crystals to over 1 cm across.
7 x 7 x 7 cm. This is a large, lustrous, salmon-pink grossular crystal from this well-known locality. Ex. Bill Larson Collection.
6.2 x 5.2 x 4.3 cm. A fine combination specimen of a line of gemmy and lustrous, reddish-orange hessonite garnets capping a vug lined with an earlier generation of gemmy and lustrous, honey-colored garnets. This specimen is complimented by a very glassy, striated, colorless axinite blade sandwiched between the two generations of garnets and a lustrous, 3.2 cm, milky quartz crystal. Ex. George Elling Collection.
1.2 x 1.0 x 0.8 cm. Tsavorite is a rare form of grossular garnet. This pair of intergrown crystals is absolutely stunning. The green color, fabulous clarity, and superb luster make this a fine specimen. 8.65 carats.
2.5 x 1.8 x 1.7 cm. Sharp, translucent, vibrant “raspberry” color dodecahedron of Grossular measuring 1.5 cm which is associated with a few smaller dodecahedra on matrix.
7.3 x 5.8 x 4.5 cm. Fine gemmy and lustrous cinnamon-colored grossular garnets to 1.3 cm richly cover contrasting albite-covered matrix on this fine specimen from the famous Jeffrey Mine of Quebec.
9.3 x 7.5 x 1.7 cm. A beautiful and sparkly plate richly covered with super-gemmy and lustrous pink grossular garnets to 3 mm and very nicely accented with gemmy, green diopside and white pectolite microcrystals. Pink garnets of this quality and association came out in a one-time find in the late 1990s from the famous and now-closed Jeffrey Mine of Quebec.
5.9 x 2.8 x 1.6 cm. This specimen has the deep, hot pink color for these Coahuilan grossulars. The largest of them measures just over one centimeter.
2.4 x 1.9 x 1.7 cm. This is a superb, intergrown cluster of glassy and gemmy, cinnamon colored grossular crystals, to 1.0 cm in length. Ex. Carnegie Museum Collection.
5.3 x 3.2 x 1.5 cm. Intergrown, glassy, gemmy, cinnamon colored grossular crystals, to 1.3 cm across a beautiful plate and a true classic from this now-closed Canadian quarry. A superb and beautiful plate with incredible lustre and transparency. Ex. Carnegie Museum Collection.
3.9 x 2.9 x 2.8 cm. This is a Mexico old-timer out of the collection of Hugh Ford. It is a very large, translucent grossularite garnet from Lake Jaco, with very lustrous faces and pretty salmon color.
5.4 x 5.4 x 3.9 cm. A large, fine example of a grossular crystal from San Diego County. The main crystal here measures 1.8 cm; there are others embedded in the matrix, but this one stands out nicely. Ex. Bill Larson Collection.
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Rob Lavinsky, rob@irocks.com
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