Substances & Homeopatic Remedies

Hecla lava

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tephra from mount hekla, Iceland

Etymology

hekla "hooded frock"

Family

Traditional name

Used parts

Finer Ash from Mount Hekla

Classification

Minerals; Inorganic; More Inorganic Compounds

Keywords

silicea
fluorum
sulphur

Original proving

Introduced and proved by Morris of University College, London, Hering: Guiding Symptoms Vol. V, 525; Homoeopathic Pharmacopoeia of United States, 7th Ed., 319, American Homoeopathic Pharmacopoeia 1980, 245.

Description of the substance

Description: Blackish brown, amorphous powder or porous mass, very light, odourless, tasteless but after some time acidic taste; insoluble in water and alcohol but slightly soluble in hydrochloric acid.
Ash Value: Not more than 92 per cent when heated to 500o in silica crucible.

Hecla [Icelandic for 'cloak'] is 1557 metres above sea level, and several hundred metres above its surroundings. The largest eruptions date from 1104 and 1766, the last two took place in 1947 and 1970. The craters are usually filled with snow and a cloud is usually floating above.
The lava of this Icelandic volcano is a silicate of calcium, magnesium, and aluminium and also contains iron oxide. When traveling in Iceland, Garth Wilkinson noticed that the sheep in the vicinity of Hecla. had immense bony growths on the jaws. Another effect noticed was the drying up of the milk both in sheep and cows. The finer ash which feel on pastures at a distance, was the most deleterious, the gross ash near the mountain was inert. The ash of this volcano contain Silica, Alumina, Lime, Magnesia with some Oxide of Iron.

An active volcano for centuries, the mountain Hekla is one of the most famous in the world. Old tales tell of the belief that the souls of the condemned travelled through Hekla's crater on their way to hell.

The whole mountain ridge of Hekla is about 40 km long. The fissure which splits the mountain ridge is about 5,5 km long. The mountain is about 1491 m high.

It is thought that Hekla has had at least twenty eruptions since the settlement of Iceland. Hekla has erupted four times in the 20th century, the last time in 1991.

Over the past 7000 years Hekla has had five big fissure eruptions. The biggest eruptions were 4000 and 2800 years ago. Traces of these two eruptions can be found in the soil in the North and the North-East of Iceland. The biggest layer of tephra from one eruption fell in the eruption 2800 years ago. It covers about 80% of the country and its volume was around 12 cubic km. Traces of it has been found in various places in Scandinavia.