Red volcanic stone, 10/16 mm volcanic lava (pallet of 35 bags of 33 lt)

RED VOLCANIC LAPILLO, 10/16 mm VOLCANIC LAVA (pallet of 35 bags of 33 lt).

Pumice and lapilli are the product of explosive volcanic eruptions formed as a result of a violent expansion of gases dissolved in acidic chemical compositions: the rapid cooling of the rock prevented its crystallization, trapping the gases inside and generating minerals alveolar expanded in a more or less accentuated way.

In fact, during the solidification phase, the vapors present in the magma, suddenly released, caused the swelling of the entire mass of magma and it is during this rapid cooling phase that the differences in the physical structure of the various volcanic aggregates were determined: the volcanic lapilli it was formed from a magma with a lower silica content.

The lower viscosity and the slower cooling of the lava have facilitated the escape of a certain quantity of the gases present in the magma.

Minerals were formed characterized by emptiness with an average diameter greater than that of pumice but of a decidedly lower number.

MEDIUM CHEMICAL ANALYSIS

SiO ₂ : 56%

At ₂ O ₃ : 16.5%

K ₂ O: 4.9%

Fe ₂ O ₃ : 6.5%

CaO: 8.8%

Na ₂ O: 0.8%

TiO ₂ : 3.1%

MgO: 1.2%

TECHNICAL FEATURES

pH: 7.0;

CATION EXCHANGE: 18 meq / 100g.

FUNCTIONAL CHARACTERISTICS AND FIELDS OF USE

Lightweight natural inert, ideal for:

? rooting substrate (sowing, cuttings, transplants, soilless crops and hydroculture);

? preparation of universal molds;

? preparation of specific soils (annuals, acidophilic plants, succulents, houseplants, lawns?);

? preparation of professional soils for outdoor horticultural nurseries and protected crops;

? mulch flower beds or areas of the garden where you want to avoid the growth of grasses or weeds;

? hydroponic crops;

? land amendment;

? hydroculture;

? drainage;

? support surface for vases;

? thermal insulation.

NB: NEWS ABOUT COLOR

It should be noted that the color of the material is variable. It depends on many factors including: the extraction point in the quarry and the humidity contained. In color it varies from light-violet red (when the product is totally dry) to intense red-brown (when the product is moist or wet). It is not possible, in any way, to choose between these colors that are found indiscriminately within the product. The secondary photograph of this listing, where the product is held in the hand, demonstrates the variability of shades. By observing advertisements with a different grain size from this one, it is possible to appreciate the color variations that are mainly given by the degree of humidity of the material at the time the photograph is taken.