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Rainbow lattice sunstone, also known as rainbow lattice, is a type of orthoclase feldspar that exhibits a rare combination of aventurescence, adularescence, and a distinctive iridescence lattice pattern. The iridescence lattice pattern consists of inclusions that are the result of crystallographically oriented exsolution crystals within the ...
Sunstone is a microcline or oligoclase feldspar, which when viewed from certain directions exhibits a spangled appearance. It has been found in Southern Norway , Sweden , various United States localities and on some beaches along the midcoast of South Australia.
Feldspar (/ ˈ f ɛ l (d) ˌ s p ɑːr / FEL(D)-spar; sometimes spelled felspar) is a group of rock-forming aluminium tectosilicate minerals, also containing other cations such as sodium, calcium, potassium, or barium. [3]
The effect of adularescence, also commonly referred to as schiller or shiller, is best described as a milky, bluish luster or glow originating from below the surface of the gemstone.
Goldstone showing aventurescence. In gemology, aventurescence (sometimes called aventurization) is an optical reflectance effect seen in certain gems.The effect amounts to a metallic glitter, arising from minute, preferentially oriented mineral platelets within the material.
The map φ + is a lattice isomorphism from L onto the lattice of all compact open subsets of (X,τ +). In fact, each spectral space is homeomorphic to the prime spectrum of some bounded distributive lattice. [3] Similarly, if φ − (a) = {x∈ X : a ∉ x} and τ − denotes the topology generated by {φ − (a) : a∈ L}, then (X,τ −) is ...
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An early successful application of the LLL algorithm was its use by Andrew Odlyzko and Herman te Riele in disproving Mertens conjecture. [5]The LLL algorithm has found numerous other applications in MIMO detection algorithms [6] and cryptanalysis of public-key encryption schemes: knapsack cryptosystems, RSA with particular settings, NTRUEncrypt, and so forth.