Crossword-Solution: TINCAL 6 letters, 4 clues 🏆 scrabble score: 8

The commercial product is obtained from the native borax (known as "tincal") by dissolving in water and allowing the solution to crystallise.

Sulphur in wool, fur, and hair, reagents for detection of, 26 Sulphuric acid, manufacture of, 50 " " " by contact process, 52 " " " by lead chamber process, 51 Sumach, 99 Tannins, 99 Tincal, 59 Tiza, 59 Toluene, 90 Toluidine, 91 Turmeric, 80, 83, 85, 87 Twaddell hydrometer degrees, 31 Ultramarine blue, 81 Ultramarine green, 81 " rose-coloured, 81 Valency, 71 Vegetable fibres.

Boron occurs in nature as boric acid or sassoline (H_{3}BO_{3}); borax or tincal (Na_{2}B_{4}O_{7}.10H_{2}O); ulexite or boronatrocalcite (2CaB_{4}O_{7}.Na_{2}B_{4}O_{7}); borocalcite (CaB_{4}O_{7}.4H_{2}O); boracite, 2Mg_{3}B_{8}O_{15}.MgCl_{2}, and some other minerals.

The most remarkable fact about this-saline deposit is that in its middle there is a tract, five miles long and two wide, of common salt, while on the outside there is a deposit of borate of soda, three feet thick, and under this a lower stratum composed of sulphate of soda and tincal mixed together, from one to three feet thick.

These minerals are all in crystals, the sulphate of soda and tincal forming a solid mass, almost like stone in its hardness.