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Linked by archaic translations and mineralogical misunderstandings, the quarterfinals are ending in hexagons with vivid pyromorphite vs writeable graphite.
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Prehnite from
La Combe de la Selle, Saint-Christophe-en-Oisans, Grenoble, Isère, Auvergne-Rhône-Alpes, France


Locality type:National Park
Classification
Species:Prehnite
Formula:Ca2Al2Si3O10(OH)2
Habit:Helmet habit, fan, bow tie
Colour:white to pale yellow, light to dark green
Quality for species:Excellent - world class for species or very significant. (!!)
Abundance at site:Rare
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Epidote33
Amphibole Supergroup11
- var Byssolite8
K Feldspar10
- var Adularia10
Actinolite9
Albite5
Calcite4
Asbestos1
Data
Mineral Data:Click here to view Prehnite data
Locality Data:Click here to view La Combe de la Selle, Saint-Christophe-en-Oisans, Grenoble, Isère, Auvergne-Rhône-Alpes, France
Photo GalleryView Gallery (58 photos)
Data Identifiers
Mindat Occurrence Record ID:196375
Long-form Identifier:1:3:196375:5
GUID (UUID V4):0
Nearest other occurrences of Prehnite
10.4km (6.4 miles) ⓘLa Rivoire, Mont-de-Lans, Les Deux Alpes, Grenoble, Isère, Auvergne-Rhône-Alpes, France
11.0km (6.8 miles) ⓘLa Rampe des Commères, Mont-de-Lans, Les Deux Alpes, Grenoble, Isère, Auvergne-Rhône-Alpes, France
11.2km (7.0 miles) ⓘLa Balme d'Auris, Auris, Grenoble, Isère, Auvergne-Rhône-Alpes, France
13.8km (8.6 miles) ⓘLe Rocher d'Armentier, La Garde, Grenoble, Isère, Auvergne-Rhône-Alpes, France
30.0km (18.7 miles) ⓘLa Pisse pass, Saint-Michel-de-Chaillol, Gap, Hautes-Alpes, Provence-Alpes-Côte d'Azur, France
30.5km (19.0 miles) ⓘLe Viallet pass, Saint-Michel-de-Chaillol, Gap, Hautes-Alpes, Provence-Alpes-Côte d'Azur, France
30.7km (19.1 miles) ⓘRiou de Buissard ravine, Saint-Michel-de-Chaillol, Gap, Hautes-Alpes, Provence-Alpes-Côte d'Azur, France
43.7km (27.2 miles) ⓘChenaillet southeast slope, Cervières, Briançon, Hautes-Alpes, Provence-Alpes-Côte d'Azur, France
43.8km (27.2 miles) ⓘMont de la Plane west slope, Montgenèvre, Briançon, Hautes-Alpes, Provence-Alpes-Côte d'Azur, France
43.9km (27.3 miles) ⓘChenaillet Pass (Col du Chenaillet), Cervières, Briançon, Hautes-Alpes, Provence-Alpes-Côte d'Azur, France
References
 
and/or  
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