Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Feldspar Group from
Lamas construction area, Lamas, Ferreira de Aves, Sátão, Viseu, Portugal


09978750017688506251234.jpg
Feldspar Group, etc.

Lamas construction area, Lamas, Ferreira de Aves, Sátão, Viseu, Portugal
09978750017688506251234.jpg
Feldspar Group, etc.

Lamas construction area, Lamas, Ferreira de Aves, Sátão, Viseu, Portugal
00989550017688330742620.jpg
Feldspar Group, etc.

Lamas construction area, Lamas, Ferreira de Aves, Sátão, Viseu, Portugal
Locality type:Pegmatite
Classification
Species:'Feldspar Group' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Quartz1
Data
Mineral Data:Click here to view Feldspar Group data
Locality Data:Click here to view Lamas construction area, Lamas, Ferreira de Aves, Sátão, Viseu, Portugal
Data Identifiers
Mindat Occurrence Record ID:1877337
Long-form Identifier:1:3:1877337:8
GUID (UUID V4):0
Nearest other occurrences of Feldspar Group
6.0km (3.7 miles) ⓘRomãs quarry, U.F Romãs Decermilo e Vila Longa, Sátão, Viseu, Portugal
6.2km (3.8 miles) ⓘPreguiça Mine, Ferreira de Aves, Sátão, Viseu, Portugal
9.0km (5.6 miles) ⓘCompanheiro No. 1 quarry, U.F Romãs Decermilo e Vila Longa, Sátão, Viseu, Portugal
9.5km (5.9 miles) ⓘU.F Romãs Decermilo e Vila Longa, Sátão, Viseu, Portugal
9.9km (6.1 miles) ⓘGralheira Mine, U.F Romãs Decermilo e Vila Longa, Sátão, Viseu, Portugal
10.5km (6.6 miles) ⓘCurval Mine, U.F Romãs Decermilo e Vila Longa, Sátão, Viseu, Portugal
12.1km (7.5 miles) ⓘOvais quarry, U.F. Aguiar da Beira e Coruche, Aguiar da Beira, Guarda, Portugal
12.5km (7.8 miles) ⓘPenedo da Cabeça quarry, U.F. Sequeiros e Gradiz, Aguiar da Beira, Guarda, Portugal
13.3km (8.3 miles) ⓘRatoeira No. 1 quarry, U.F. Sequeiros e Gradiz, Aguiar da Beira, Guarda, Portugal
16.2km (10.1 miles) ⓘReal quarry, Real, Penalva do Castelo, Viseu, Portugal
References
Klaus Ludwig information, January 2026.Identified by Rui Nunes: Visual Identification
 
and/or  
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