Celestine

Occurrence. The principal strontium mineral is celestite, naturally occurring strontium sulfate. Celestite and celestine [7759-02-6] both describe this mineral. However, celestite is the form most widely used in Knglish-speaking countries. Celestite has a theoretical strontium oxide content of 56.4 wt %, a hardness of 3—3.5 on Mohs scale, and a specific gravity of 3.96. It is usually white or bluish white and has an orthorhombic crystal form. 

Deuchar EM. Staining sections before autoradiographic exposure excessive background graining caused by celestin blue. Stain Technol 1962 37 324. 

This quotation is one of the most forthright regarding alchemical theory and practice ever written. But alchemical Mercury and Sulphur are not physical substances they are states of mind, aspects of consciousness. James Redfield, in The Celestine Vision, makes this very important point ... 

James Redfield, The Celestine Vision (New York Warner, 1997), pp.183-184. 

The structure of celestine is similar to that of barites, with Sr taking the place of Ba. 

Steady-state luminescence of celestine is characterized by broad bands, which are associated with adsorption of water-organic complexes (Tarashchan 1978).The natural celestine in our study consisted of five samples. The laser-induced time-resolved technique enables us to detect strong emission bands but their interpretation is not finished yet (Fig. 4.32). 

Fig. 4. 32. a-d Laser-induced time-resolved luminescence spectra of celestine demonstrating possibly Pb centers... 

Numerous processes have been proposed for extracting potash from felspar, leucite, alunite, and other minerals rich in this substance, but the cost is so great that very few proposals yet made ofier promise of successful competition with the Stassfurt deposits. This is even the case with alunite, where mere calcination to 1000° drives off water and sulphuric acid, leaving water-soluble potassium sulphate, and alumina. Humphry Davy in his paper On Some Chemical Agencies of Electricity (1807), indicated in Cap. Ill, found that when water was electrolyzed in cavities contained in celestine, fluorspar, zeolite, lepidolite, basalt, vitreous lava, agate, or glass, the bases separated from the acid and accumulated about the cathode. It is therefore probable that if water with finely divided potash minerals in suspension were electrolyzed, the alkali would be separated in a convenient simple way. 

On the large 6cale the nitrate is prepared by heating pounded celestine with one-third of its weight of bituminous coal, dissolving the resulting sulphide in water, and decomposing with dilate nitric add. 

Methylene green, azine green. Celestine blue, coreine jR, ultra cyanine, modem cyanine, phenocyanme, chroinocyanine. mi ... 

Gallocyanine, celestine blue, correine. prune, gallamine blue, delphine blue, brilliant delphine blue, indalizaruie, lanoglaucine, ultra cyanine, ultra violet, etc. M is 0... 

Strontium. Sr at no 38 at wt 87.62 valence 2 two important radioactive isotopes (out of 12), Sr-89 and Sr-90 four stable isotopes, 88 (82.56% abundance), 86 (9.86% abundance), 87 (7.02% abundance), 84 (0.56% abundance) silvery-white metal, face-centered cubic structure brief exposure to air results in the yel oxide mp 752°, 757°, 769° (separate values) bp 1366°, 1384°, 1390° (separate values) d 2.6g/cc. Sol in acids, ethanol and liq ammonia. CA Registry No [7440-24-6]. Occurs in nature as the sulfate celestine or the carbonate strontianite also found in small quantities associated with Ba, Ca, Pb or K minerals. Prepn is by a) electrolysis of molten Sr chloride in a graphite crucible with cooling of the upper cathodic space to isolate the Sr vapors, or b) thermal redd of the oxide... 

Method C Sample was oxidized with excess NBS and the consumed NBS was determined by observing the decrease in color intensity using Celestine blue with measurement of absorbance at 540 nm. 

Michael E. Rogers, National Institutes of Health Celestine M. Rohlfing, National Science Foundation Debra R. Rolison, Naval Research Laboratory Nina M. Roscher, American University Margaret W. Rossiter, Cornell University Norka Ruiz Bravo, National Institutes of Health John M. Schwab, National Institutes of Health... 

The Pu/Al targets were initially the fuel elements for the Celestin reactor. After irradiation and cooling, some targets were rer-irradiptedL for nine months (average flux 2.5 x 101 n.cnT. s to improve the isotopic quality of the americium 243 and plutonium 242 which they contained. 

Majzlan J., Navrotsky A., and Neil J. M. (2002) Energetics of anhydrite, barite, celestine, and anglesite a high-temperature and differential scanning calorimetry study. Geochim. Cosmochim. Acta 66, 1839-1850. 

Hanor J. S. (2000) Barite-celestine geochemistry and environments of formation. In Sulfate Minerals,... 

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