Amazonite, also known as amazonstone, is a green tectosilicate mineral, a variety of the potassium feldspar called microcline. Its chemical formula is KAlSi3O8, which is polymorphic to orthoclase.
Granite is a coarse-grained (phaneritic) intrusive igneous rock composed mostly of quartz, alkali feldspar, and plagioclase. It forms from magma with a high content of silica and alkali metal oxides that slowly cools and solidifies underground. It is common in the continental crust of Earth, where it is found in igneous intrusions. These range in size from dikes only a few centimeters across to batholiths exposed over hundreds of square kilometers.
Ytterby is a village on the Swedish island of Resarö, in Vaxholm Municipality in the Stockholm archipelago. Today the residential area is dominated by suburban homes.
A pegmatite is an igneous rock showing a very coarse texture, with large interlocking crystals usually greater in size than 1 cm (0.4 in) and sometimes greater than 1 meter (3 ft). Most pegmatites are composed of quartz, feldspar, and mica, having a similar silicic composition to granite. However, rarer intermediate composition and mafic pegmatites are known.
The River Camel is a river in Cornwall, England. It rises on the edge of Bodmin Moor and with its tributaries its catchment area covers much of North Cornwall. The river flows into the eastern Celtic Sea between Stepper Point and Pentire Point having covered about 30 miles (50 km) making it the second longest river wholly in Cornwall. The river is tidal upstream to Egloshayle and is popular for sailing, birdwatching and fishing. The name Camel comes from the Cornish language for 'the crooked one', a reference to its winding course. Historically the river was divided into three named stretches. Heyl was the name for the estuary up to Egloshayle, the River Allen was the stretch between Egloshayle and Trecarne, whilst the Camel was reserved for the stretch of river between its source and Trecarne.
Killas is a Cornish mining term for metamorphic rock strata of sedimentary origin which was altered regionally by the Variscan orogeny and then locally by heat from the intruded granites in the English counties of Devon and Cornwall. The term is used in both counties.
Mining in Cornwall and Devon, in the southwest of Britain, is thought to have begun in the early-middle Bronze Age with the exploitation of cassiterite. Tin, and later copper, were the most commonly extracted metals. Some tin mining continued long after the mining of other metals had become unprofitable, but ended in the late 20th century. In 2021, it was announced that a new mine was extracting battery-grade lithium carbonate, more than 20 years after the closure of the last South Crofty tin mine in Cornwall in 1998.
Roche is a civil parish and village in mid-Cornwall, England, United Kingdom. The village gets its name from the 20-metre (66-foot) high Roche Rock, a quartz-schorl outcrop east of the village. Roche is the Norman-French word for Rock. The parish population at the 2011 census including Belowda, Bilberry, Carbis, Coldvreath and Criggan is 3,381, and the ward population at the same census was 3,867.
Totternhoe Knolls is a 13.1-hectare (32-acre) Site of Special Scientific Interest (SSSI) in Totternhoe in Bedfordshire. It is also a local nature reserve, and part of the Chilterns Area of Outstanding Natural Beauty. The site is owned by Central Bedfordshire Council and leased to the National Trust. Most of the site is maintained jointly by the National Trust and the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire (WTBCN), and is part of the WTBCN Totternhoe nature reserve, which also includes Totternhoe Chalk Quarry and Totternhoe Stone Pit. The SSSI also includes Totternhoe Castle, the earthworks of a Norman motte-and-bailey castle which is a Scheduled monument.
A bal maiden, from the Cornish language bal, a mine, and the English "maiden", a young or unmarried woman, was a female manual labourer working in the mining industries of Cornwall and western Devon, at the south-western extremity of Great Britain. The term has been in use since at least the early 18th century. At least 55,000 women and girls worked as bal maidens, and the actual number is likely to have been much higher.
Churchtown Farm is a community nature reserve one mile south of Saltash, Cornwall, England. It is leased from Antony Estate and managed by Cornwall Wildlife Trust, and includes diverse habitats such as grassland, estuarine mudflats, wetland, woodland, disused quarries and hedgerows.
Meeth is a village and civil parish in the West Devon district, in the county of Devon, England roughly 13.5 km (8.4 mi) north-northwest of Okehampton and 40.7 km (25.3 mi) west-northwest of Exeter. It lies to the west of the River Torridge. In the past, ball clay mines were a major source of employment in the village, lying just to the west, however these closed in 2004. Their site is now a nature reserve owned by the Devon Wildlife Trust, called Meeth Quarry. The Trust's Ash Moor reserve is also located close to the village. In 2021 the parish had a population of 161.
Bixslade, occasionally written Bix Slade, is a short, steep-sided, valley in the Forest of Dean, Gloucestershire. It begins on high ground at Bixhead, near Broadwell, and descends sharply to meet the Cannop Valley at Stonyhill Green. Bixslade has been quarried or mined continuously for over 500 years and has been described as "one of the country's finest areas of extractive industrial heritage".
Stenders Quarry is a 2.8-hectare (6.9-acre) biological and geological Site of Special Scientific Interest in the Forest of Dean, Gloucestershire, England, notified in 1966 and renotified in 1990. The site is designated as an SSSI for its important geological features, although there is also a diversity of plants and animals recorded.
A gook was a piece of protective headgear worn by bal maidens. The gook was a bonnet which covered the head and projected forward over the face, to protect the wearer's head and face from sunlight and flying debris. Bal maidens often worked outdoors or in very crude surface-level shelters, and the gook also gave protection from extreme weather conditions. By covering the ears, gooks protected the ears from the noisy industrial environment.
Helman Tor is a granite hill in mid Cornwall, UK with several separated tors, and is designated as a (non-statutory) County Geology Site. The hill also has a Scheduled Ancient Monument. Helman Tor is also the name of the largest nature reserve managed by the Cornwall Wildlife Trust which includes Breney Common and Red Moor. The Wildlife Trust aims to rewild the reserve, including potentially releasing beavers, as well as long-horn cattle and Cornish black pigs. Helman Tor, along with Breney Common, Red Moor and Belowda Beacon, is part of the Mid Cornwall Moors Site of Special Scientific Interest. It lies on the Saints' Way, a long-distance footpath completed in 1986.
Cape Cornwall Mine was a tin mine on Cape Cornwall, a cape at the western tip of Cornwall, England, United Kingdom. It operated intermittently between 1838 and 1883, after which time it closed permanently and the engine house was demolished. The mine's 1864 chimney near the peak of the cape was retained as an aid to navigation, and in the early 20th century the former ore dressing floors were for a time converted into greenhouses and wineries. In 1987 the site was donated to the nation by the H. J. Heinz Company. The remains of Cape Cornwall Mine now form part of the Cornwall and West Devon Mining Landscape, a UNESCO World Heritage Site.
Boogardie quarry is a quarry on Boogardie Station, 35 km from Mount Magnet in the Mid West region of Western Australia, that is a location of a rare deposit of orbicular granite.
Baker's Pit Nature Reserve is a nature reserve in the parish of Ludgvan, west Cornwall managed by the Cornwall Wildlife Trust (CWT). The reserve is on the moorland of Noon Diggery and is south of the Castle-an-Dinas hillfort and Roger's Tower, a folly built within the hillfort. Within the reserve is a distinctively shaped enclosure with a funnel-like entrance resembling a banjo enclosure, which is an Iron Age ritual site found mostly in Wessex and south-east England and the only known one in Cornwall,
