Quartz occurrences, Avissalos, Serifos Island, Milos, South Aegean, Greece
Size: 10.5x7.5x9.5cm (Cabinet)
© Christos Spiromitros & Greekrocks.com
Size: 5.3x3x2cm (Miniature)
FOV 7cm Sep.1990
© SF
FOV 3cm April1985
FOV 4cm Sep.1988
FOV2cm April1985
FOV 3cm Sep.1990
Magnetite pseudomorphous after hematite crystals on small quartz crystals. XRD analyzed in the University of Natural Resources and Life Sciences, Vienna, Austria. No hematite is left in these aggregates! It seems that all "hematite" "iron roses" from Avissalos are pseudomorphs of this kind. I tested all my samples - all are high magnetic! Thank ...
© hamster@aon.at
123mm x 44mm x 46mm. On one side the prase is covered with magnetite. Material and photo Martin Gruell
© http://www.mineralienkluft.at
Quartz crystals with inside Hedenbergite needles this combination is called "PRASE",p.w. 8.15 mm,coll. Aad Begeer Photo Ko Jansen.
© Ko Jansen
105mm x 46mm x 30mm. little xls and some hematite at the base, undamaged. Material and photo Martin Gruell
117mm x 66mm x 39mm. A group of well formed intergrown xls. Material and photo Martin Gruell
126mm x 48mm x 33mm. Intergrown xls in a amazing dimension. Material and photo Martin Gruell
Quartz crystals with inside Hedenbergite needles,this combination is called "Prase",p.w. 9.79 mm,coll.Aad Begeer photo Ko Jansen.
Quartz crystals inside needles of Hedenbergite this combination is called "Prase" , p.w. 7.18 mm,coll.& photo Ko Jansen.
© rudo
Prase quartz on naturally etched calcite with actinolite along the base of the specimen. Acquired in 2017 from Robert Kunze.