Diopside- gemmy crystals on matrix
stock #17.1-AX- 35-524
Calvin Mitchell Prospect, Dekalb, St Lawrence County
4.3 x 4 x 2.6 CM (miniature)
Fine and sharp gem clear Diopside crystals on a Diopside matrix in excellent condition. From the famed Dekalb classic location made famous in the 1800s, The largest crystal is 2.3 CM long and has fine transparency and a nice yellow-green color. This was collected by and in the collection of S. Alverson in the last good find over 4 decades ago. Since that pocket there have been no more with this clarity and glassy luster. Outstanding for the location and an esthetic piece as well!
Sharp crystals of Smithsonite cover a matrix of Cerussite with some twinned crystals showing. The Smithsonites are all perfect and undamaged. A nice association the milky white Smithsonite crystals have nice contrast to the grey Cerussite.
Yellow-hued crystals of transparent Smithsonite up to 2.5 CM long are sticking out in all directions on this complex yet esthetic piece. In outstanding condition overall, there is one crystal with a broken termination that will be hidden on most logical display angles. All of the other crystals are quite perfect. Without analysis I am not sure if this should be called Cadmian Smithsonite as many yellow examples are labelled. Choice and attractive.
A super and unusual thumbnail gem crystal with a clear red Rubellite exterior that lets the green-blue inner core be seen like a racing stripe. Choice and better in person, there is a tiny bit of adhering matrix and one small clean contact with no damage. This crystal is also dichroic with a good color shift seen when rotated in front of a light source like a computer screen. Small but with a good display impact far larger than the size!
Kermesite with Calcite
Caiwa Mine, Danfeng Co. Shangluo Prefecture
6.5 x 5.5 x 3.1 CM (cabinet)
A very nice display specimen of Kermesite crystals on matrix from the one time find that produced the best ever. Typical crude terminations on sharp crystals to nearly 3CM tall standing up from the matrix. In person the red glints of the Kermesite is very evident. Micro crystals of an unknown mineral that seems to be Valentinite are a bonus. Delicate and fine, these are now very hard to find and expensive when available. A fine value ex Shields Flynn collection obtained from Bert Ottens.