Summer 2020 Extravaganza Auction, Part I

Yaogangxian is a huge, underground tungsten-tin deposit. The mine covers an area of about 4 x 2.5 km and includes two large deposits of distinct type

An outstanding example of the garnet family species, Andradite. Andradite is a calcium iron nesosilicate mineral which occurs in skarns developed in c

A very well-formed cluster of greenish-bronze, dodecahedral andradite (garnet) crystals. The specimen is in outstanding condition and possesses very s

Manganoan Calcite is a variety of calcite rich in manganese, which gives the mineral a pink color. This specimen features dozens of thin, "disk...

Huge, rhombic crystals of light-pink, manganese-rich calcite crystals from the prolific specimen producing mines at Huanggang, Inner Mongolia. The gro

An attractive combo specimen Wuhuashan Mountain. The specimen features a plate of hematite included (reddish-orange color) quartz points partially cov

These fantastic quartz crystal clusters were first discovered and brought to the American mineral market within the last 10 years. The terminations of

This specimen is a cluster of highly-flattened, rhombohedral crystals of bright reddish-pink rhodochrosite from the Wutong Mine. Opened in 1958 as a s

The world's finest scheelite crystals have been produced from Mt. Xuebaoding in Sichuan Province, China. This is a superb example of the highly ...

This specimen features more than ten gemmy, lustrous, sharp, reddish-orange sphalerite crystals which have grown on a matrix covered with colorless dr

Malachite is a bright green copper carbonate hydroxide mineral which occurs in many crystal habits and forms. This fantastic specimen features long (7

This attractive apophyllite specimen features well-formed, lustrous, transparent to translucent light green crystals that are blocky in shape with ste

Aegirine is a member of the clinopyroxene group of inosilicates and is a sodium iron silicate. Aegirine occurs as dark green, monoclinic, prismatic cr

Adamite is a zinc arsenate hydroxide mineral which typically occurs in the oxidized or weathered zone above zinc ore occurrences. Pure adamite is colo

A superb, crystallized botryoidal crust of bright yellow Mimetite. Mimetite is a lead arsenate chloride mineral which forms as a secondary mineral in

Beautiful Quartz v. Amethyst from the Acatitlan Mine, Taxco de Alarcon, Mun. de Taxco, Guerrero, Mexico. 6" x 5" x 2.5". Provenance:...

Cerussite is a favorite species of mineral collectors. It is a lead carbonate mineral and is an important ore of lead. Cerussite crystallizes in the o

A spectacular specimen of the lead carbonate mineral Cerussite. Cerussite is popular with collectors worldwide as it frequently produces well formed,

An attractive mineral specimen featuring dark olive-green cube-octahedral fluorite crystals in association with "booklets" of yellowish mu...

Mined since around 1920, the Okorusu Mine is an open pit fluorite mine. The deposit is part of an alkaline igneous-carbonatite ring-dike complex where