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The knowledge of Indians about sulfur is very ancient. In the oldest and most popular treatise of Ayurveda [[Charaka Samhita (चरक संहिता)]] which was written 1200 years before Christ, sulfur has been used at many places for the treatment of many diseases. Its use has increased in texts written in later times. In the texts after the 8th century, Parada (पारदः Mercury) was mixed with Gandhaka and used in medicines and in Dhatuvada (धातुवाद) or metallurgical work. Since then till today no metal work is done without sulphur. The name Shulbari etc. is the symbol of Sulphur being the enemy of copper. If copper is heated by mixing sulphur, then copper gets destroyed.

The knowledge of Indians about sulfur is very ancient. In the oldest and most popular treatise of Ayurveda [[Charaka Samhita (चरक संहिता)]] which was written 1200 years before Christ, sulfur has been used at many places for the treatment of many diseases. Its use has increased in texts written in later times. In the texts after the 8th century, Parada (पारदः Mercury) was mixed with Gandhaka and used in medicines and in Dhatuvada (धातुवाद) or metallurgical work. Since then till today no metal work is done without sulphur. The name Shulbari etc. is the symbol of Sulphur being the enemy of copper. If copper is heated by mixing sulphur, then copper gets destroyed.

== स्वरूपम् Appearance ==

== स्वरूपम् ॥ Appearance ==

Gandhaka is available in both free and bound forms. Sulfur mixed with metals is available in pure form near volcanic mountains and at other places. Sulfur is found in the form of both sulphide and sulphate compounds.

Gandhaka is available in both free and bound forms. Sulfur mixed with metals is available in pure form near volcanic mountains and at other places. Sulfur is found in the form of both sulphide and sulphate compounds.

== गन्धकखनिजानि Sulfur Minerals ==

== गन्धकखनिजानि ॥ Sulfur Minerals ==

Naturally Sulphur is available in the form of various minerals of sulphur. Gandhaka or Sulphur is extracted from these minerals. Some of the suphur minerals are listed below,

Naturally Sulphur is available in the form of various minerals of sulphur. Gandhaka or Sulphur is extracted from these minerals. Some of the suphur minerals are listed below,

* Sulphide - in Sulphide form

* Sulphide - in Sulphide form

# Copper Sulphate (Cu SO, SHO)  

# Copper Sulphate (Cu SO, SHO)  

== गन्धकस्य नैसर्गिकस्त्रोताः Natural sources of Sulphur ==

== गन्धकस्य नैसर्गिकस्त्रोताः ॥ Natural sources of Sulphur ==

Sulfur is also found in some organic substances like radish, onion, garlic, egg, etc. and in coal and crude petroleum products. These are the natural sources through which one can get organic form of sulphur.

Sulfur is also found in some organic substances like radish, onion, garlic, egg, etc. and in coal and crude petroleum products. These are the natural sources through which one can get organic form of sulphur.

== प्राप्तिस्थानम् Place of receipt ==

== प्राप्तिस्थानम् ॥ Place of receipt ==

Free sulfur is found in the Sicilian volcanic region of 'Italy', New Zealand, Japan, Spain, Texas etc. countries. It can also be found in countries like Russia, Japan, Burma, Iceland, America, Chile, Philippines, etc. In India, sulfur is found in abundance in Singhbhum district and Rohitas district of Jharkhand province, in Rajasthan, Kumaon and Assam.

Free sulfur is found in the Sicilian volcanic region of 'Italy', New Zealand, Japan, Spain, Texas etc. countries. It can also be found in countries like Russia, Japan, Burma, Iceland, America, Chile, Philippines, etc. In India, sulfur is found in abundance in Singhbhum district and Rohitas district of Jharkhand province, in Rajasthan, Kumaon and Assam.

== गन्धकभेदाः Sulfur Types ==

== गन्धकभेदाः ॥ Sulfur Types ==

Ayurveda scholars have described various types of Gandhaka. It is classified on the basis of color, mode of consumption or utilization etc. Depending on its colour the supremacy of the gandhaka type and its value based on it has been decided. Gandhaka types are thus further also graded into good, better, best types. From a philosophical point of view, sulfur is the same but there are many differences of sulfur in shape, color etc.   

Ayurveda scholars have described various types of Gandhaka. It is classified on the basis of color, mode of consumption or utilization etc. Depending on its colour the supremacy of the gandhaka type and its value based on it has been decided. Gandhaka types are thus further also graded into good, better, best types. From a philosophical point of view, sulfur is the same but there are many differences of sulfur in shape, color etc.