Panasqueira minerals. Apatite, Ferberite, Quartz, Arsenopyrite, Siderite, Calcite, Dolomite, Moscovite, mineral specimens.

Panasqueira ferberite, siderite, calcite.

1- (11.5 x 9 x 6 cm) Ferberite, siderite and small crystals of Calcite. Simply a superb specimen for this locality. The termination of the ferberite is striking for its sharp textbook form. There are crystals up to 4cm thick! The white, semi transparent crystals of calcite with ferberite is an uncommon association in this mine. In the lower part of the specimen there are areas not perfectly crystallyzed but they are not damaged.

	2- (13.2 x 7 x 6.8 cm) Arsenopyrite, ferberite, siderite and moscovite. This specimen has lots of good crystals to look at. It is not damaged anywhere! Fully crystallized all around! Note the green iridiscent light of the arsenopyrite crystals.


	3- (20 x 6 cm) Quartz, dolomite, siderite and botroidal pyrite. Yes, quartz is a very common mineral, but this one is really good. Pristine condition for this impressive specimen.


	4- (12 x 9 x 6.6 cm) Arsenopyrite, dolomite - siderite, ferberite and minor moscovite. The vast majority of the specimen are perfect crystals of arsenopyrite, only a few crystals of ferberite at the botton. I think this arseno pyrite is altered to other mineral..scorodite ?...I have never seen a similar arsenopyrite. If you can give me mineralogical info about this specimen, I will be gratefull with you! In any case, it is a outstanding specimen. This specimen was mined lots of years ago, so it is totally stable, like the vast majority in this locality.

	5- (10.6 x 4.5 x 5.3 cm) Sphalerite (ferroan/marmatite variety), siderite, some acicular crystals of tourmaline, and a few small crystal of arsenopyrite at the rear. The tetrahedral habit is really evident. John Sinkankas says is his book, Mineralogy for amateurs; "Smooth-faced crystals with easily recognizable forms are scarce". It is difficult to obtain a good sphalerite specimen from Panasqueira Mine. Note: the luster of the sphalerite crystals is amazing in person. Totally crystallized all around, mint condition, simply outstanding!

	6- (8 x 8 x 5 cm) Arsenopyrite, marcasite, siderite, calcite and moscovite. Important note: lots of specimens of marcasite radily decomposed, becoming coated with efflorescence of iron sulfate, but the marcasites from Panasqueira Mine simply not decomposed. It was mined about twenty years ago and it is in perfect condition.

	7- (7.1 x 5 x 2.8 cm) Apatite, siderite and microcrystals of pyrite. Extralarge crystal of apatite! The piece is a floater cluster with glassy crystals, very translucent! In person, they are more translucent than they appear.


	8- (7.1 x 3.3 cm) Quartz, arsenopyrite, siderite, chalcopyrite and moscovite. This really interesting piece shows clear, vibrant inclusions of arsenopyrite in the quartz crystal.

	9- (5 x 3 cm) Ferberite (text book terminations), siderite - dolomite, quartz and pyrite. In this specimen you can see the outcore of dolomite in the siderite crystals. It is a epitaxial growth. More information: Kelly,W.C., y Rye, R.O. (1979) Geologic fluid inclusions and stable isotope studies of the tin tungsten deposits of Panasqueira, Portugal. Economic Geology, 74, 1721-1822.


10- (5 x 3.6 cm) Apatite, siderite (with numerous small pits on otherwise smooth faces, caused by etching and dissolution), moscovite, and small black crystals at the rear, I think they are cassiterite. The whole piece is perfect all around and it is just a super display quality miniature!

	11- (8.8 x 5.5 cm) Calcite crystals with interesting crystallography on ferberite. Small crystals of pyrite are scattered on the calcites. Better in person.

	13- (2.8 x 2.3 cm) The best thumbnail of siderite on quartz I have ever seen! You can see the hexagonal habit of the crystals, included by pyrite/marcasite. Good luster except the pinacoid faces, seldom seen in siderite specimens.

	Floater specimen

	14- (3 x 2 cm) Apatite, siderite and acicular crystals of tourmaline at the botton of the specimen. Fluorescent in yellow.

	15- (8 x 5.2 cm) Very iridiscent crystals of arsenopyrite, siderite, dolomite and minor moscovite. Far better in person!


	16- (10.3 x 2.2 cm) Quartz, siderite, ferberite (one included in quartz) and scattered microcrystals of pyrite. The luster of the quartz is really special.


	17- (14 x 5 cm) Quartz with a included big ferberite crystal at the bottom. Totally recrystallized in his base. The included ferberite crystal is curved and recrystallized. No damage.

	22- (6.3 x 3.6 cm) Fantastic chalcopyrites in this specimen, plus galena, sphalerite, arsenopyrite and siderite. In reality the chalcopyrites have an extraordinary luster and crystallography. Bad photo!

	23- (6.7 x 4.1 cm) Very rare habit in these apatites on quartz, also small crystals of siderite, pyrite, and moscovite.

27- (9 x 3 cm) Apatite and moscovite.

	28- (5.5 x 2.2) Calcite, pyrite, siderite. Unusual specimen for the locality. I think this is a fantastic calcite for the locality. Look the last photo, this specimen was perched in a point of a quartz crystal! Really Panasqueira is a "box" of mineralogical surprises.

If you are interested in a Panasqueira mineral suite like this email me at juan@spanishminerals.com We have unbeatable prices for resellers.

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	12- (9 x 4 cm) Biterminated quartz on matrix made of moscovite, siderite, and very probably cassiterite.

	18- (4 x 3.6 cm) Galena, arsenopyrite and chalcopyrite. Floater specimen.

	21- (6.4 x 5 x 2 cm) Arsenopyrite with quartz. Small crystals of sphalerite.

	24- (6.6 x 3.2 cm) Siderite crystals on quartz. Floater specimen.

	20- (11 x 7 cm) Pyrite on Calcite. Minor moscovite.

	25- (7.8 x 3 cm) Ferberite, apatite, pyrite, siderite.