Arsenate Collection

Liroconite, Wheal Gorland, St Day, Gwennap, Cornwall, England
A large, rare, liroconite crystal on strashimirite found in 1808. At 2.5cm, the specimen is the largest known crystal from any locality worldwide

Clinoclase, St Day, Gwennap, Cornwall, England
Spheroidal clinoclase coating liroconite, 4.5 cm in diameter. The specimen is probably from Wheal Gorland or Wheal Unity. Collector Philip Rashleigh wrote in his mineral catalogue

Chalcophyllite, Wheal Gorland, St Day, Gwennap, Cornwall, England
Coarse crystals of chalcophyllite. Collector Philip Rashleigh wrote in his mineral catalogue: Transparent six sided thin Crystals of Copper Ore with some eight sided crystals of green Do

Olvienite crystal amongst quartz

Libethenite C016 / 5660
Libethenite. Wedge-shaped, dark green crystals of libethenite (copper phosphate hydroxide) with pale brown duftite. Specimen from the Phoenix mine, Lnkinhorne, Cornwall, UK

Liroconite specimen C013 / 6527
Liroconite specimen. Liroconite comprises of hydrated copper aluminum arsenate hydroxide. Its blue colour is due to the oxidation of copper ores

Goyazite
Scanning electron microscope image of the energy-dispersive X-ray spectrum of the mineral goyazite, obtained using Link AN10000 analysis system

Scorodite comprises of (hydrated zinc arsenate) and is characterized by brownish-green crystals. Specimen from the collections of the Natural History Museum, London

Libethenite
Wedge-shaped, dark green crystals of libethenite (copper phosphate hydroxide) with pale brown duftite. Specimen from the Phoenix mine, Lnkinhorne, Cornwall

Scotlandite comprises of (lead sulphite) and derives from the sulphates group. Specimen from the Natural History Museum, London originally from Leadhills, Lanarkshire, Scotland

Schultenite comprises of (lead arsenate hydroxide) and derives from the phosphates group. Specimen from the Natural History Museum, London

Descloizite is comprised of (lead zinc vanadate hydroxide) and is characterized by platy crystals with a rounded triangualr shape. Specimen from the Natural History Museum, London

Chalcophyllite
Chalcopyrite or copper pyrite comprises of (copper iron sulphide). Its a common mineral and found in almost all sulphide deposits

Erythrite
Erithrite comprises of (hydrated cobalt arsenate) and is characterized by its striking red-purple colouration and needle-like fibrous crystals

Liskeardite
A specimen of the mineral liskeardite from the Marke valley mine, Liskeard, Cornwall. Soft fibrous crystals, forming a pale-green botryoidal crust on a fine-grained matrix of chlorite and quartz

Olivenite comprises of (copper arsenate hydroxide). It is a rare copper mineral normally deep olive green in coluor. Specimen from Wheal Jewel, Gwennap, Cornwall

Mimetite
A tall, orange prismatic crystal of mimetite. Mimetite comprises of (lead chloroarsenate)

Adamite
A specimen of the mineral adamite (zinc arsenate hydroxide). It is a fluorescent mineral, popular among collectors and shows bright green fluorescent under UV lights

Conichalcite
A specimen of the mineral conichalcite (calcium copper arsenate hydroxide). This mineral holds orthorhombic crystals and belongs in the Adelite group

Liroconite comprises of (hydrated copper aluminum arsenate hydroxide). It is blue in colour and forms from the oxidation of copper ores. Specimen from the collections of the Truro Museum, Cornwall

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"Arsenate: A Glimpse into Cornwall's Mineral Wealth" Discover the hidden treasures of Cornwall, England with a visit to Wheal Gorland in St Day, Gwennap. Here lies a world-renowned source of arsinate minerals that will leave you awe-struck. Liroconite, an exquisite blue gemstone, can be found here in abundance. Its vibrant color and intricate crystal formations make it a true marvel of nature. Take a moment to admire its beauty as it sparkles under the sunlight. Clinoclase is another remarkable find in this region. With its deep green hue and lustrous appearance, it never fails to captivate mineral enthusiasts from all over the world. Explore St Day and Gwennap for your chance to witness this stunning specimen up close. Chalcophyllite is yet another gem waiting to be discovered at Wheal Gorland. Its delicate shades of turquoise create an enchanting sight amidst the rugged landscape of Cornwall. Immerse yourself in its tranquil beauty as you explore this historic mining area. For those seeking something truly unique, look no further than Olvienite crystals nestled amongst quartz formations. These rare specimens are sure to take your breath away with their striking combination of colors and textures. But let's not forget Libethenite C016 / 5660 - a true collector's dream. This captivating mineral showcases intricate patterns and hues that will leave you mesmerized by Mother Nature's artistry. And if that wasn't enough, Mimetite, Olivenite, Goyazite, Scorodite – these are just some more the diverse range minerals awaiting discovery in Cornwall's rich geological heritage. So whether you're an avid collector or simply appreciate the wonders of our planet's natural treasures, venture into Scotlandite mines or explore other corners of Cornwall for an unforgettable journey through time and geology.