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Orthoclase from
Castanheira, Albergaria da Serra, Arouca, Aveiro, Portugal

Classification
Species:Orthoclase
Formula:K(AlSi3O8)
Confirmation
Validity:Believed Valid
References
References:According to pioneer work carried out in the 1950s by C.T Assunção & C.Teixeira (Boletim do Museu e Laboratório Mineralógico e Geológico Faculdadede Ciências, 1954, v.27, pp.7–17).
Data
Mineral Data:Click here to view Orthoclase data
Locality Data:Click here to view Castanheira, Albergaria da Serra, Arouca, Aveiro, Portugal
Nearest other occurrences of Orthoclase
38.3km (23.8 miles) A Repeses, Viseu, Viseu, Portugal
51.7km (32.1 miles) B Mangualde, Viseu, Portugal
55.2km (34.3 miles) C Venturinha, Sezures, Penalva do Castelo, Viseu, Portugal
55.9km (34.7 miles) D Real quarry, Real, Penalva do Castelo, Viseu, Portugal
59.1km (36.7 miles) E Corfel Mine, Vila Longa, Sátão, Viseu, Portugal
59.9km (37.2 miles) F Gralheira Mine, Vila Longa, Sátão, Viseu, Portugal
61.5km (38.2 miles) G Cova da Raposa Mine, Chãs de Tavares, Mangualde, Viseu, Portugal
64.4km (40.0 miles) H Monte da Pena, Guimarães, Braga, Portugal
71.5km (44.4 miles) I Nabais, Gouveia, Guarda, Portugal
87.6km (54.4 miles) J Pópulo, Alijó, Vila Real, Portugal
98.1km (61.0 miles) K Covide quarry, Covide, Terras de Bouro, Braga, Portugal
101.6km (63.1 miles) L Bendada Mines, Bendada, Sabugal, Guarda, Portugal
104.3km (64.8 miles) M Penalobo (or Pena Lobo), Sabugal, Guarda, Portugal
104.5km (65.0 miles) N Borrageiro Mine, Cabril, Montalegre, Vila Real, Portugal
105.3km (65.4 miles) O Paradela, Montalegre, Vila Real, Portugal
105.4km (65.5 miles) P Barral, Vila Chã, Ponte da Barca, Viana do Castelo, Portugal
109.7km (68.2 miles) Q Cabanas Mine, Arcozelo, Ponte de Lima, Viana do Castelo, Portugal
117.2km (72.8 miles) R Portugal No. 2 quarry, Malpartida, Almeida, Guarda, Portugal
122.8km (76.3 miles) S Salas dam, Muiños, Orense (Ourense), Galicia, Spain
129.5km (80.5 miles) T Macieira quarry, Boivão, Valença do Minho, Viana do Castelo, Portugal
131.9km (82.0 miles) U Sanfins quarry, Sanfins, Valença do Minho, Viana do Castelo, Portugal
132.7km (82.5 miles) V Lara quarry, Lara, Monção, Viana do Castelo, Portugal
132.9km (82.6 miles) W Eiras quarry, Sanfins, Valença do Minho, Viana do Castelo, Portugal
151.5km (94.2 miles) X Barruecopardo Mine, Barruecopardo, Salamanca, Castile and Leon, Spain
154.3km (95.9 miles) Y Monte de São Bartolomeu, Nazaré, Nazaré, Leiria, Portugal
Mineral and/or Locality  
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