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Description
English: Makatite, Zakharovite
Locality: Demix-Varennes quarry, Saint-Amable sill, Varennes & St-Amable, Lajemmerais RCM, Montérégie, Québec, Canada
Field of view: ~6½ x 4⅓ mm.
Description: Fibrous makatite with a hint of the “sea green” color characteristic of this find associazted with “mustard” – zakharovite. Found Sept 2000. MOB coll. It can be very difficult to distinguish zakharovite from “smectite group” at STA but in this case the “flake size” seems too large for the more powdery smectite. However, even under high magnification I only see a very few xls with hexagonal shape – perhaps wishful thinking. The dark areas in the makatite are natrolite terminations trying to push through. The dark spots in the “mustard” are something else. Close inspection shows rounded red/brown blobs. I don’t know what they are. This material is from a hydrothermalite with (relatively) abundant varennesite.
Deutsch: Makatit, Zakharovit
Sichtfeld: ~ 6⅔ x 4⅓ mm)
Fundort: Grube Demix-Varennes, Saint-Amable Schwelle, Varennes & St-Amable, Lajemmerais RCM, Montérégie, Québec, Kanada
Beschreibung: Faseriger Makatit mit einem Hauch von „meergrüner“ Farbe, die für diesen Fund charakteristisch ist und mit „Senf“ in Verbindung gebracht wird – Zakharovite. Gefunden Sept. 2000. MOB coll. Es kann sehr schwierig sein, Zakharovit von der „Smectit-Gruppe“ bei STA zu unterscheiden, aber in diesem Fall scheint die „Flockengröße“ zu groß für den pulverförmigeren Smectit zu sein. Allerdings sehe ich selbst bei starker Vergrößerung nur ganz wenige Kristalle mit Sechseckform – vielleicht Wunschdenken. Die dunklen Bereiche im Makatit sind Natrolith-Enden, die versuchen, sich durchzudrücken. Etwas anderes sind die dunklen Flecken im „Senf“. Eine genaue Betrachtung zeigt abgerundete rot/braune Kleckse. Ich weiß nicht, was sie sind. Dieses Material stammt von einem Hydrothermalit mit (relativ) reichlich vorhandenem Varennesit.
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Source http://www.mindat.org/photo-449520.html
Author Modris Baum

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current20:01, 10 August 2014Thumbnail for version as of 20:01, 10 August 20141,024 × 696 (161 KB)Ra'ike== {{int:filedesc}} == {{Information |Description= {{en|Makatite, Zakharovite ::Locality: Demix-Varennes quarry, Saint-Amable sill, Varennes & St-Amable, Lajemmerais RCM, Montérégie, Québec, Canada ::FOV ~6½ x 4...

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