Treverbyn, Knightor, Ruby & Trethurgy Mine, Cornwall
St Austell: grid reference SX033564
Notable minerals: Limonite, Haematite & Black Quartz.
Treverbyn, Knightor, Ruby & Trethurgy Mines lie about three quarters of a mile east of Penwithick, between and Bugle and St Blazey in the Luxulyan section of the St. Austell Mining District. They were four adjoining mines working on an iron lode producing 58% to 66% metallic iron. There were two known shafts on the lode: Butt's Shaft and Floyd's Shaft.
Records of production are:
Ruby: 2,000 tons of iron ore in 1862
Treverbyn: 204 tons in 1864
Ruby & Knightor: 51,190 tons between 1862 and 1872
Knightor & Treverbyn: 4,580 tons between 1872 and 1874
and finally Ruby & Trethurgy: 25,150 tons between 1872 and 1880.
Other associated minerals were limonite, haematite and black quartz.
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Other nearby mines and their main ores
Rocks and Treverbyn United (approx. 2.0 km; TIN)
Wheal Bunnie (approx. 2.6 km; TIN & WOLFRAM)
Par & St Blazey Consols (approx. 3.8 km; TIN)
Par Consols (approx. 4.1 km; COPPER & TIN)
Pembroke Mine (approx. 4.6 km; COPPER & TIN )
Polmear (approx. 4.7 km; COPPER & PYRITES)
East Crinnis (approx. 4.7 km; COPPER, TIN & ZINC)
Great Crinnis (approx. 5.0 km; COPPER, LEAD, IRON & SILVER)
Fowey Consols (approx. 5.1 km; COPPER & TIN)
Great Polgooth (approx. 6.6 km; TIN & COPPER)