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The earliest donations were noted in the museum's annual report on June 30, 1899, when the institution reported that Dr. L. T. Chamberlain gave them two cut Yogo sapphires and 21 other sapphires for their Dr. Isaac Lea gem and mineral collection. [91] The record-setting 10.2-carat (2.04 g) cut Yogo is also held by the Smithsonian.
The Patricia is one of the few large gem-quality emeralds that remains uncut. [11] Also on display was the 563 carat (113 g) Star of India , the largest, and most famous, star sapphire in the world. It was discovered over 300 years ago in Sri Lanka , [ citation needed ] most likely in the sands of ancient river beds from where sapphires ...
The town takes its name from the mineral trona, abundant in the lakebed. It is about 170 miles (274 km) northeast of Los Angeles, on State Route 178. The ZIP code is 93562. Trona is known for its isolation and desolation, [2] as well as the nearby Trona Pinnacles. The local school plays on a dirt football field because the searing heat and ...
The New York Mineralogical Club, Inc. is the oldest continually-operating mineral club in the United States. [1] The club was founded by George Frederick Kunz, Benjamin B. Chamberlin and Professor Daniel S. Martin, on September 21, 1886, in the home of Professor Daniel S. Martin at 236 West 4th Street, New York City.
Llanite is a porphyritic rhyolite with distinctive phenocrysts of blue quartz (a rare quartz color) and perthitic feldspar (light grayish-orangeish). The brown, fine-grained groundmass consists of very small quartz, feldspar, and biotite mica crystals.
One reason for the rise in popularity of amateur geology is that a collection can begin by simply picking up a rock. There are people who have formed clubs and groups that search for specimens and compare them with collections from other groups as a hobby. Information on such groups can be found at libraries, bookstores, and "gem and mineral ...
Kentucky's flag has a navy blue background with the Seal of Kentucky in the middle. 1928 [2] [3] Latin motto: Deo gratiam habeamus "Let us be grateful to God" 2002 — [4] Motto: United we stand, divided we fall: 1942 — [4] Nickname: The Bluegrass State The bluegrass that grows in the state's pasture land Traditional — [5] Seal: The Seal of ...
The blue coloration seen on Maya and Aztec codices, and early colonial-era manuscripts and maps, is largely produced by the organic-inorganic mixture of añil leaves and palygorskite, with smaller amounts of other mineral additives. [21] Human sacrificial victims in postclassic Mesoamerica were frequently daubed with this blue pigmentation. [22]