|
108
|
THE MINERAL WEALTH OF BRAZIL
|
||
|
|
|||
|
milreis,
1939 — 28,124 milreis and 25,361 milreis in 1940. Quartz at the mine
was priced at 2,000 milreis per metric ton in the state of Goiaz while
in Minas Gerais it was 1,550 milreis. The cheapest was that of the
state of Baía which was valued at 1,000 milreis per metric ton.
In
order to establish stability' in the industry, classifications and
price limits were provided for under Decree-Law N.° 3,067 thus
encouraging production and faciliting export as well as guaranteeing
the buyer abroad a standardized article.
The principal contents of the decree-law are the following:
1) — Export must be made by a classification and evaluation form
issued by the Departamento Nacional da Produção Mineral of the Ministry of Agriculture.
2) — Rock crystals shall be classified into a) — "cristal" (crystal):
and b) — "lasca" (fragments).
3) — The term "cristal" will cover three classes, "A" being the hyaline crystal, colorless, light and with a uniform appearance,
60%
of which must be utilizable, "B" which is also hyaline, colorless or
lightly colored, 60% utilizable and with simple needles, few, sparse
and hazy bubbles being tolerated, and "C", also hyaline, colorless or
colored with more than 40% gemination.
4) — The term "lasca" refers to fragments weighing less than 200
grams
and are divided into the following types: "Primeira" (first) that which
does not present crystalline faces, spots, bub-blesy and blue streaks;
"Segunda" (second) that which contains crystalline faces, spots,
bubbles and blue streaks and "Mistas" (mixed) that which presents mixed
characteristics.
5) — The minimum prices for the classes and types are fixed as fol-
lows until further rectification; ■
|
|||
|
|
|||
|
|
|||
|
|
|||