This is an exceptional and very unusual Brochantite from the famed Blanchard Mine. Two cubes of Galena are partly altered to Anglesite (small sparkling clear crystals on all faces) which is a fairly common thing at Blanchard. What is far more rare however is those faces are also overgrown with acicular Brochantite. The resulting green cubes (up to 1.8 CM across) contrast well with the Quartz and Fluorite matrix. We have seen Blanchard Galenas overgrown with Linarite making nice blue cubes but never green Brochantite cubes. A super distinctive specimen. Linarite and Brochantite often occur together at the Blanchard, however on this piece there is no hint of Linarite. A very attractive and important association / pseudomorph from this great USA locality. In excellent condition as seen, this piece is older, pre 1975.
Brochantite - a modern Mexican classic
stock #16.1-078
Milpillas Mine, Cuitaca, Municipio de Santa Cruz
Sonora,
Mexico
6.3 x 3.4 x 1.4 CM (cabinet)
price: $950
Spring 23
Brilliant, lustrous Emerald-green mass of well-formed crystals on minimal matrix. From the world class find about 8 years ago at Milpillas, these were huge news in the mineral world at that time. They have since become very scarce on the market in such quality. The crystals reach over 1.2 CM long and are fairly stout so the specimen is not as fragile as many were. The style and esthetic feel of these Brochantites are unlike any others worldwide, this is a very choice example.
Brochantite
stock #AX-3-413
Milpillas Mine, Cuitaca, Municipio de Santa Cruz
Sonora,
Mexico
3.3 x 2.3 x 1.6 CM (thumbnail)
price: $260
Early summer 2021
A sizable thumbnail of Brochantite from the earliest find at Milpillas. This has the mixture of very slender hairlike crystals and the more stout, thicker ones. Excellent color and condition. We saw very few good thumbnails sized pieces of Brochantite from Milpillas as most were quite large. The Brochantites found at this locale were quickly hailed as world-class and set new standards. This small piece is a choice example that is a perfect, tiny part of this important discovery.
Brochantite - exceptional large crystals
stock #AC-373
Chuquicamata Mine, Calama, El Loa Province
Antofagasta Region,
Chile
5.6 x 2.5 x 1.6 CM (cabinet)
price: $4500
new year 2021
An extraordinary and important old specimen of Brochantite from Chuquicamata, Ex Schortmann's and Immer Cook collection. The original label dates this to 1948-52, and by far it the best specimen I know of from this famed mine. This is certainly a serious contender for the best of specie outside of the 2016 Milpillas find. Even compared to the Mexican specimens this is a very significant stout cluster. The largest crystal is huge, 4.6 CM tall and quite thick. Close exam of the specimen finds a few slender needle crystals which are more typical of the specie. Under good magnification (40x) a few specks of blue that can be Krohnkite, Bellingerite or Aubertite etc are visible. There are areas of contacting making some rough edges but very little damage. A world class Copper secondary specimen.
Brochantite on Malachite -historic
stock #1145-JM-3267
Frisco, San Francisco Mts. Beaver County
Utah,
United States
5.4 x 4.4 x 3 CM (small cabinet/large miniature)
price: $175
Worldwide mix summer
A vug of well protected Brochantite crystals ex John Marshall collection that has an excellent provenance. John bought this from Johnathan Smith (NYC mineral dealer) in Feb 1994. Jonathan had obtained this from the Alan Green collection who had gotten this from the Schortmann brothers at their famed sale in NYC in 1950, at the Hotel Lexington. This is the period where the Schortmans were selling minerals collected by Ed Over and Arthur Montgomery. All the original labels for this are included. In good condition, a cute Utah Copper specimen with pedigree.
Brochantite- mix of needles and thicker crystals
stock #18.AX-224
Milpillas Mine, Cuitaca, Municipio de Santa Cruz
Sonora,
Mexico
4.6 x 3.2 x 2.3 CM (miniature)
price: $650
Worldwide mix summer
Bright green Brochantite crystals standing on end in a dense cluster. The matrix is mostly Brochantite as well, and formed of packed needles. The larger, thicker crystals are quite robust and these have a fine silky luster. From the epic finds at Milpillas, these Brochantites are one of the great surprises from the oxidized zone of this incredible Copper mine.
An extraordinary, delicate, electric green Brochantite from what may be the best discovery ever of the species. In person the color is an intense emerald green deeper than can be rendered on most computer monitors. Perfect condition, strong esthetics and intense color make this piece stand out in any display. There have been only a few small pockets of Brochantite over the past few years at Milpillas which is far better known for incredible Azurites. There have been very few fine specimens in these finds, and none recently. Without a doubt these will be regarded as some of the best of the specie ever seen, and are a fine affordable investment. This specimen can be shipped with special arrangements but it is far safer to deliver in person at a major show or by other arrangement.
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