... Pica Mountain, Iquique Province, Tarapacá Region, Chile. Associated minerals are salammoniac, halite, nitratine and belloite. Bojarite occurs as blue fine-grained porous aggregates up to 1 mm × 3 mm × 5 mm combined typically in interrupted earthy crusts. The mineral is brittle. The Mohs hardness is 2...

..., Chile. Associated minerals are salammoniac, halite, dittmarite, joanneumite, chanabayaite, nitratine, natroxalate and möhnite. Triazolite occurs as deep blue prismatic crystals up to 0.1 mm × 0.15 mm × 0.75 mm and their radial aggregates up to 1.5 mm across. The mineral is brittle. Its Mohs hardness...

..., Tarapacá region, Chile. It occurs as colorless, tabular crystals up to 140 μm in length, associated with dittmanite and nitratine. Witzkeite is colorless and transparent, with a white streak and a vitreous luster. It is brittle, with Mohs hardness 2 and distinct cleavage on {001}. Measured density is 2.40...

..., maucherite, metarossite, millerite, monazite, nickeline, nitratine, proustite, pyrargyrite, raspite, sassolite, scorzalite, stannite, symplesite, ulexite, xenotime-(Y). * Corresponding author, e-mail: [email protected] 19 02 2009 27 08 2008 17 02 2009 © 2009 E...

...) degrees , V = 3707.3(6) Aa 3 , Z = 4, is a new mineral on a museum specimen labeled as originating from Oficina Chacabuco, Chile. It occurs both as isolated and groupings of 0.2 mm sized bright lemon-yellow micronodules of crystals on a host rock principally composed of halite, nitratine, and niter...

...-phase chemistry is preserved in minerals at Earth’s surface. It certainly was a surprise to me! But there is now in hand unambiguous evidence of atmospheric photochemistry recorded by minerals. The evidence takes the form of measured anomalous isotope fractionations in minerals such as nitratine, barite...

... order–disorder behavior of the anion in nitratine and calcite using a modified Bragg–Williams (BW) model. In this study we elaborate on their work, generalizing it to include the first-order transition from aragonite to calcite, with the aim to develop a quantitative understanding of the relative...

..., aggregates up to 5 mm in size. Associated minerals are salammoniac, halite, chanabayaite, nitratine, and belloite. Bojarite is a copper triazolate mineral; its ideal formula is Cu3(N3C2H2)3(OH)[Cl2(H2O)4]·2H2O (Chukanov et al. 2020). BFdo 3jacr).itIetscerlyegstaanltliczreysstinal tshtreuccut ubriec...

... of the transition to be ca . 1260 K. Nevertheless, this type of orientational disorder, and its dependence on temperature, has been fully described by Ballirano (2011b) in isostructural nitratine (NaNO 3 ), which does not share with calcite the same experimental problems. The present work aims...

... hydroxide (from pellets, Sigma-Aldrich, 98%), and reacted in a Teflon autoclave bomb in a steel sleeve at 473 K for 14 days. Reactants are summarised in Table 1 . The powders produced were rinsed several times with water to remove excess nitratine (NaNO 3 ), after which they were mixed with another 10 mL...

... of the calcite phase transition has developed in tandem with studies of the analogous transition in nitratine, NaNO 3 ( Paul and Prior 1971 ; Reeder et al. 1988 ; Poon and Salje 1988 ; Lynden-Bell et al. 1989 ; Schmahl and Salje 1989 ; Payne et al. 1997 ; Harris et al. 1998b ; Harris 1999 ). The R 3̄ m...

...Figure 7. Calculated deviations of ∆′ 17 O from water vapor at equilibrium from 243–1573 K. a ) anhydrous silicate minerals and molecules. b ) hydrous silicate minerals, diaspore, and spinel. c ) carbonates and nitratine. d ) phosphates. e ) sulfates. f ) CO 2 , CO, and sodium perchlorate...

... : In a quartz – feldspar – tourmaline rock. Other associated minerals are: nitratine, montmorillonite, paratacamite, atacamite, gunningite, alunite and natrojarosite. Comments : IMA No. 1997–012. Note that the crystal structure has been solved. B rugger , J., M eisser , N., S chenk , K., B erlepsch...

... hygroscopic, which is consistent with the wet surfaces observed during our field visits (July 2013 and August 2015). Other minerals present were sylvite, nitratine, basanite, epsomite, thenardite, and tachyhydrite. Three mechanisms are possible for the formation of CaCl 2 -rich waters ( Hardie and Eugster...

... ). Here ideality is assumed for sorbed concentrations. At 20 m Na + , nitratine (NaNO 3(s) ) is slightly supersaturated at 25°C, and close to equilibrium at 65°C. The selectivity coefficients for Na + and Cs + used in the calculations are listed in Table 2 . Fig. 1 shows the Cs + distribution...

... with catalogue number 97680. Savelievaite is the first borate mineral with species-defining Cr 3+ . Before its discovery, only one mineral with both species-defining boron and chromium was known, iquiqueite K 3 Na 4 Mg(Cr 6+ O 4 )B 24 O 39 (OH)⋅12H 2 O, found in nitratine deposits in Chile (Ericksen et al...

... ) Laboratory parallel beam transmission X-ray powder diffraction investigation of the thermal behavior of nitratine NaNO 3 : Spontaneous stress and structure evolution . Physics and Chemistry of Minerals , 38 , 531 – 541 . Ballirano P. ( 2012 ) The thermal behaviour of liottite . Physics...