10 LIBRI IN INGLESE ASSOCIATI CON «PECTOLITE»
Scopri l'uso di
pectolite nella seguente selezione bibliografica. Libri associati con
pectolite e piccoli estratti per contestualizzare il loro uso nella letteratura.
PectOlite Ca2NaH[Si03]3 Triclinic ( + ) a y 8 2V, oc:z = 10°-19 y.y = 2° Dispersion
: D H Cleavage : Twinning : Colour: Unit cell : 1 592-1-6101 1-603-1-615 1- 630-
1 -645 0030-0038 50°-63° /?:xl0°-16° 0.A.P. near (100) r > v, weak. 2- 84-2-90 ...
William Alexander Deer, Robert Andrew Howie, J. Zussman, 1997
2
Modern Luminescence Spectroscopy of Minerals and Materials
4.23. a, c Laser- induced time-resolved luminescence spectra of Mn2+ in
pectolite and Pb2+ in prehnite. b, d Excitation spectra of pectolite demonstrating
Mn2+ and Pb2+ 4.1.13 Pectolite NaCa2Si308(OH) Pectolite is a hydrous
pyroxenoid ...
Michael Gaft, Renata Reisfeld, Gerard Panczer, 2005
3
Field Guide to Rocks & Minerals of Southern Africa
Pectolite is white and occurs as distinctive fibrous crystals that often cluster in
compact spherical groups. Some pectolite crystals are very soft and sectile.
OCCURRENCE Pectolite occurs in amygdales in basalts, and rarely as a
secondary ...
4
United States Geological Survey Professional Paper
PECTOLITE HNa(Ca,Mn)i(S10a)i. Monoclinic Forms.— a(100),c(001),A(540), 2(
340), a>(140),r(101). Habit. — Pectolite is found as transparent colorless crystals
and grains implanted on and mixed with prehnite and as pinkish coarse-fibrous ...
5
Gems: Their Sources, Descriptions and Identification
Pectolite is NaCa2Si3O8(OH) and a member of the wollastonite mineral group in
which it forms a series with sérandite (q.v.) whose Mn is borrowed to provide
shades of pink in an otherwise colourless, white or grey mineral. Pectolite occurs
...
6
Geological Survey professional paper
PECTOLITE HNo(Ca,Mn)i(SiOJt Monoclinic jFbrms.— a(100),c(001),A(540), 3(
340), w(140),r(101). Habit. — Pectolite is found as transparent colorless crystals
and grains implanted on and mixed with prehnite and as pinkish coarse-fibrous ...
Geological Survey (U.S.), Geological Survey (U.S.). Geographic Names Information Management, 1987
7
Geological Survey Bulletin
was taken out. With water alone similar results were obtained, the action being so
rapid, although relatively slight, that pectolite, moistened, gives an immediate and
deep coloration with phenol phthalein. By boiling the powdered pectolite with ...
8
Collecting Rocks, Gems and Minerals: Identification, Values ...
Pectolite generally occurs as aggregates of acicular needles in fibrous, radiating,
botryoidal, compact masses. Pectolite is commonly white, light gray, or colorless,
and is often found within cavities in basalts associated with zeolites, calcite, ...
9
A Study of the Fauna of the Hamilton Formation of the Cayuga ...
With water alone similar results were obtained, the action being so rapid,
although relatively slight, that pectolite, moistened, gives an immediate and deep
coloration with phenol phthalein. By boiling the powdered pectolite with distilled
water ...
Herdman Fitzgerald Cleland, 1903
10
Contributions to Chemistry and Mineralogy from the ...
The belief that pectolite is a metasilicate is effectively confirmed. Upon the
unignited pectolite the sodium carbonate solution has a slow decomposing
action, both silica and bases being withdrawn. In two experiments fifteen minutes
of boiling ...
Frank Wigglesworth Clarke, 1900
5 NOTIZIE DOVE SI INCLUDE IL TERMINE «PECTOLITE»
Vedi di che si parla nei media nazionali e internazionali e come viene utilizzato il termine ino
pectolite nel contesto delle seguenti notizie.
Editors' picks: the most colourful fine and high jewellery dispatches …
An aqua blue larimar – a variety of pectolite that hails from the Caribbean – has been set into a one-of-a-kind pendant; not to be outdone is a ... «wallpaper.com, lug 15»
Beyond Diamonds: Discover the Hidden Gems of Latin America and …
As mentioned above, Larimar is a rare blue pectolite which was first discovered in 1916 and can only be found close to the Bahoruco region in ... «Nearshore Americas, apr 15»
BillyTheTree Acquires Rare Collection of Larimar Rings from the …
While the rare gemstone is actually a type of pectolite, an acid silicate hydrate that can be found in many different locations, Larimar is the only ... «PR Web, giu 14»
Village Silversmith opens store in Portsmouth
A popular one is the Larimar stone, a rare blue variety of pectolite found only in the Caribbean. A complete listing of available stones can be ... «Seacoastonline.com, nov 13»
Body of Evidence
Also referred to as the “Atlantis Stone” or “Stefilia's Stone,” larimar is a variety of pectolite and its volcanic blue coloration is a result of a cobalt ... «Honolulu Weekly, mag 11»
