Kryvopustoshansky granite deposit

• Name of the deposit:

  Kryvopustoshansky granite deposit

• The name of the stone is petrographic, own, trade.

Petrographic – granite;
Own – “granite of Kryvopustoshansky deposit”;
Trademark – not registered

• Quarry owner

In 1979-84 a preliminary exploration was conducted at the deposit (Ostrovskaya I.A., 1984). In 1990 detailed exploration was carried out here (Matveyenko B.G., 1997). Work has not been completed and the granite reserves have not been approved. However, a full range of research was carried out at the site, which made it possible to characterize it as a large and very attractive object for the production of quality granite for the production of monoblocks and facing materials.

• Geographical location

The deposit is located in the Bratske district of Mykolaiv region, between the villages of Antonopol and Kudryavtsevo, and near the village of Kryva Pustosh. The district center, Bratske, 13 km south-west.
The area of the deposit is 35.3 ha.

• Geographic coordinates

North latitude	47056’28’’
East longitude	31045’11’’

• Quarry access roads, transport thoroughfares, availability of nearby railway stations

  The nearest railway station is Kavuny, 50 km west. The territory has a network of paved roads.

• Stones of the deposit

Two varieties of rock: 1) leucocratic granite (71% of total volume); 2) vein- and lens-shaped secretions of complex morphology of pegmatite granites (29% of total volume). Granites of the first main variety have a bright color in red tones: pink-red, dark-red, to cherry-red, grayish-red. The structural pattern of the breed can be greatly enhanced, depending on the ambient light conditions, sometimes revealing the appearance of dense, intense red flames in the tones of the last rays of the evening sun. The second type of granite is pegmatite, as well as quartz veins. Compared to the main granites of the deposit, they are characterized by considerable variations of rock-forming minerals and their large size, sometimes with a distinct granophyre structure. Quartz and microcline discharge sizes often exceed 5 and even 10 cm.

• Reserves and Resource as of 01.01.2018.

  Only Resources, including category Measured – 6,948.14 thousand m³, Indicated – 4,902.8 thousand m³.
  The output of the blocks is – 45 % (estimated)

• Physical & mechanical properties

  Unit name	Value Units	Value
  		from	to
  Bulk weight	t/m3	2.55	2.65
  Density	t/m3	2.62	2.68
  Porosity	%	0.8	2.04
  Water absorption	%	0.04	0.2
  Tensile strength when compressed in air-dry condition	MPa	113	147
  The limit of compressive strength in water-saturated state	MPa	98	142
  Strength reduction factor after water saturation		0.93	0.97
  Tensile strength after compression after 100 freeze cycles	MPa	108	137
  Strength loss after 100 freeze cycles	%	–	–
  Frost resistance		0.94	0.97
  Brand of frost resistance		F – 100
  Mass loss at friction	g/cm2	–	–
  The content of natural radionuclides for leucocratic granite	Bq/kg		295.1
  The content of natural radionuclides for pegmatite granite	Bq/kg		412.5

• Mineral composition

Name of mineral	Content in leucocratic granite, %	Content in pegmatite granite, %
Microcline	40 – 55	40 – 70
Plagioclase	25 – 30	20 – 60
Quartz	20 – 25	5 – 10
Pyroxene, amphibole, biotite	1 – 3	single grains
Apatite, garnet, zircon, monazite, etc.	single grains	single grains

• Chemical composition

SiO2	Al2O3	Fe2O3	CaO	MgO	K2O	Na2O	SO3	CO2	H2O	в.п.п.
75.29	13.25	1.72	1.10	0.17	3.99	3.86	0.03	<0.03	0.03	0.27

State Service of Geology and Subsoil of Ukraine (Derzhgeonadra)
03680, Ukraine, Kyiv, str. Anton Tzedik (formerly Eugene Potier), 16
Phone: +38 (044) 536-13-17
Fax: +38 (044) 456-71-45
E-mail: sekretar@geomail.kiev.ua