polished or raw stones
Amethyst Cut Natural Bases # From PRICE Kg Price by Kilogram Three types of color intensity tones PRICE P / Kg # 1 Kg = 2,20 lb The prices vary according to the intensity: Soft Violet, price Kilogram u$s 11.- Intermedio Violet, price Kilogram u$s 16.- Intense Violet, price Kilogram u$s 27.- Query stock Extra super color Violet Kilogram u$s 37.- Query stock Material: Amethyst rock crystal Price Kg from U$s 11.- to u$s 37.-
Heart of Amethyst # From PRICE Kg. Price by Kilogram Three types of color intensity tones The prices vary according to the intensity: Price from Kg  u$s 35.- to u$s 78.- Material: Amethyst rock crystal Price Kg from u$s 35.- to u$s 78.-
Druzy Amethyst # From PRICE Kg Price by Kilogram Three types of color intensity tones PRICE P / Kg  # 1 Kg = 2,20 lb The prices vary according to the intensity: Soft Violet, price Kilogram u$s 9.- Intermedio Violet, price Kilogram u$s 14.- Intense Violet, price Kilogram u$s 20.- Query stock Extra super color Violet Kilogram u$s 30.- Query stock Material: Amethyst rock crystal Price Kg from u$s 9.- to u$s 30.-
Amethyst Geodes / Chapels # From PRICE Kg Price by Kilogram PRICE P / Kg # 1 Kg = 2,20 lb Amethyst Geodes / Chapels Three types of color intensity tones The prices vary according to the intensity: Soft Violet, price Kilogram u$s 35.- Intermedio Violet, price Kilogram u$s 45.- Intense Violet, price Kilogram u$s 65.- Query stock Extra super color Violet Kilogram u$s ??.- Query stock Material: Amethyst rock crystal Price Kg from u$s 39.- to u$s 65.-
Amethyst Formations # From PRICE Kg Price by Kilogram Formations different in weight, tonality, quality Material:Â Amethyst rock crystal Price Kg from u$s 29.- to u$s 80.-
Specimen Collection # From PRICE Specimen Collection Color:Â Different tonalities in unique pieces Material:Â Amethyst rock crystal Price Kg from u$s ?? PHOTOGRAPHY AS AN EXAMPLE
Agate plates # From PRICE Kg Agates, Jasper, Rock crystal, Amethyst, and combinations Price by Kilogram Color: Different Price : From u$s 15.- to u$s 60.-
Amethyst spheres # From PRICE Kg Price by Kilogram Illustrative photo Different prices according to color, quality and diameter. Color: Violet, Crystal clear Material: Amethyst rock crystal Price Kg from u$s 35.- to u$s 85.-
Amethyst Stalactites # From PRICE unity Price in Dollars, per unit. Ilustrative image, ask by variety and stock Price from u$s 6.- to u$s 20.-
Amethyst Clusters # From PRICE Kg Uniform pieces, shapes and intensity of different colors Price for Kg Box Approx Weight : 1,5 Kg Color: Violet Material: Amethyst rock crystal Price Kg from u$s 44.-
Agate Natural # From PRICE Kg Price by Kilogram from u$s 0,90.- Check the prices for the following categories : 1/2 a 1 Kg 1 a 3 Kg 3 a 10 Kg 10 a 20 Kg 20 at more
Amethyst pieces with metal support # From Price Kg. U$S 35.-
Product Introduction In bioreactor systems, achieving optimal mass transfer of gases such as oxygen or carbon dioxide can be challenging. This is particularly true for oxygen, which is poorly soluble in water and even less so in cell culture and fermentation broths. While agitation is commonly used to mix nutrients and ensure homogeneity of the cell culture or fermentation, there are limits to agitation speed due to high power consumption and potential damage to organisms resulting from excessive tip speed. Agitation alone is insufficient for achieving adequate mass transfer. However, by incorporating a porous metal sparger, mass transfer rates can be significantly increased in this type of equipment. Optimal mass transfer rates can be accomplished by introducing gases into stirred or unstirred reactor vessels via millions of small bubbles, which expands the gas-to-liquid contact surfaces. Parameter Pore size: 0.2-100 microns Dia: 5-300mm Length: 10-1000mm Porosity: 30-50% Operating temperature: up to 600C Maximum pressure: up to 10 bar
SLICE PEBBLE MOSAIC IS SUITABLE FOR FLOORING , WALLING , INDOOR MADE FROM PEBBLE SLICE , TUMBLING AND GLUE IT ON WHITE FIBER GLAS MESH
Pumice stones.
Black stone, natural stones. stone chips.
Dundup Stone Quartzite.
Stones.
Gabro stone.