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20 specimens listed
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Rashleighite (ferroan Turquoise aka Henwoodite) Type area
stock #AX-10-815
St. Austell
Cornwall, England
9.8 x 5.8 x 4.8 CM (cabinet)
price: $600


A large and rich specimen of this uncommon Turquoise variety from the St. Austell district where this was originally described from several mines. The Rashleighite is a botryoidal green covering much of the matrix. This is set off nicely by sparkling micro crystals of what seems to be very transparent Siderite. A sizable and colorful old Cornish specimen.

Cerussite on Quartz - elongated sixling twins
stock #17.1-855
Pentireglaze Mine,Polzeath, St. Minver
Cornwall, England
9.3 x 7 x 6.7 CM (cabinet)
price: $240
new year 2021

An excellent old Cornish Cerussite with sharp crystals to 2CM long. The crystals are all twinned with most showing a complete sixling habit. These look like six spoked gears when seen on end. The matrix is mostly a vuggy Quartz with micro crystals sparkling on most surfaces. For such a delicate mineral this is in good condition. Hard to know the exact age of this specimen, it has an old collection number on it, the mine was most active in the mid 1800's but there has been collecting activity in more recent years.

SOLD Cuprite with Native Copper
stock #SOLD 20.1-602
Wheal Gorland
Cornwall, England
3.2 x 2.6 x 1.7 CM (small miniature/ large thumbnail (toenail))
price: $0
new year 2021

A complex mass of well-formed Cuprite octahedrons mixed with a few areas of Native Copper. There also appears to be a few tiny pseudomorphs of Copper after Cuprite best seen under magnification. With strong lighting the deep red of the Cuprites is easily seen but under subdued illumination the color is more brown to black. In excellent undamaged condition, the individual crystals are up to 8 mm though most are much smaller. A choice example from this well-known and venerable Cornish locality. Ex Les Hitchings collection.

Olivenite on Quartz - classic Cornwall
stock #12.1-022
Wheal Carpenter, Fraddam, Gwinear-Gwithian
Cornwall, England
5.1 x 3.9 x 4.1 CM (small cabinet/large miniature)
price: $690
new year 2021

Well-crystallized Olivenites are protected in a shallow vug lined with Quartz crystals. In excellent condition, ex Don Shultz collection. The Olivenites are deep green, glassy lustrous and many are doubly terminated. From Wheal Carpenter according to the original label, this is a small mine that operated sporadically from 1792-1855. We have never seen another example from this locality. This specimen is similar to other Olivenites from this region, though the crystals here are a bit larger than others we have seen.

Sphalerite and Siderite - fine Cornish
stock #15.1-450
Ale and Cakes Mine, Gwennap
Cornwall, England
4.2 x 2.8 x 2.6 CM (miniature)
price: $800


Super lustrous black Sphalerite crystals on contrasting crystals of Siderite. This piece is from the noted Cornish collection of Lewis Barton (his label is included), and is a superb Sphalerite from anyplace in Cornwall and likely the best known from the Ale and Cakes Mine (which is a great name for a mine)! Despite a few edge nicks and contacts the overall quality and condition is really fine. A choice addition for any good Cornish or UK suite.

SOLD Chalcopyrite - coated by Bornite, classic Cornish
stock #SOLD 1022-JM-4033
Carn Brea Mine, Pool, Carn Brea
Cornwall, England
8.8 x 7.2 x 4.7 CM (cabinet)
price: $0


A choice old Carn Brea (Cornwall) specimen of Chalcopyrite crystals in Tetrahedral form, well coated with a dark Bornite. Excellent pedigree, previous collections include AK Borland, Brian Lloyd and John Marshall (labels etc included). The matrix is mostly Quartz with some pinkish crystals and some areas of Pyrite. The Chalcopyrites are quite sharp, up to 1.4 CM these are protected in two main vugs so most are in quite good condition. Some minor chipping is noted under loupe inspection, overall displays and looks clean. This mine has long ago vanished but over 100 years ago it produced some great Bornite and Chalcopyrite. A nice specimen from a significant locality in Cornwall.

Balydonite -classic locale
stock #0040-JM-135
Penberthy Croft Mine, St. Hillary
Cornwall, England
8 x 6.7 x 4.7 CM (cabinet)
price: $750
Spring 2020

A colorful and attractive very old Balydonite specimen from Cornwall with rich density. Ex Lechner collection (Austria) a mid to late 19th century collection that had also absorbed several earlier collections. The collection was dispursed in 1940-50 era. In 1969 sold to John Marshall via Schortmanns. This specimen is well over 100 years old, perhaps much older. The original label does not specify the mine but with the Lechner collection number (7132-13-23) it can be confirmed that this is in a sequence from the famed Penberthy Croft, and the habit etc is a perfect match for this location, which is also the type locality. The mine closed in 1840. There are several other species present that are not identified but what appears to be an area of Cornubite is noted as is some areas where the Balydonite has partly covered by a bluish-white mineral. Overall a choice classic example that has several possible display angles. Labels from Schortmann and Marshall are included.

Torbernite - Classic Cornwall locale, large crystals
stock #0236-JM-2880
Old Gunnislake Mine, Callington District
Cornwall, England
7.7 x 6.2 x 3.8 CM (cabinet)
price: $650
Spring 2020

A fine old Cornish specimen with a large spray of Torbernite (4 CM across) nicely perched on matrix. Great history with previous owners Hugh Ford, J. Cilen, Larry Conklin and John H. Marshall collections. This was advertised for sale by Larry Conklin for 250.00 fourty years ago. The specimen is certainly older than these collections (the Ford Label can be dated between 1946-1957). This mine dates back to the 1500 era as a copper mine later worked for Tungsten. Many other species were found there in later years including a few fine Torbernites many of the best can be seen in the British Museum. This piece is quite choice.