Alpine crystals have been studied and collected for hundreds of years, and began to be classified in the 18th century. Leonhard Euler studied the shapes of crystals, and by the 19th century crystal hunting was common in Alpine regions. David Friedrich Wiser amassed a collection of 8000 crystals that he studied and documented. In the 20th century Robert Parker wrote a well-known work about the rock crystals of the Swiss Alps; at the same period a commission was established to control and standardize the naming of Alpine minerals.
By the 19th century what was common in the Alpine regions?
crystal hunting

Modern Rajasthan includes most of Rajputana, which comprises the erstwhile nineteen princely states, two chiefships, and the British district of Ajmer-Merwara. Marwar (Jodhpur), Bikaner, Mewar (Chittorgarh), Alwar and Dhundhar (Jaipur) were some of the main Rajput princely states. Bharatpur and Dholpur were Jat princely states whereas Tonk was a princely state under a Muslim Nawab. Rajput families rose to prominence in the 6th century CE. The Rajputs put up a valiant resistance to the Islamic invasions and protected this land with their warfare and chivalry for more than 500 years. They also resisted Mughal incursions into India and thus contributed to their slower-than-anticipated access to the Indian subcontinent. Later, the Mughals, through skilled warfare, were able to get a firm grip on northern India, including Rajasthan. Mewar led other kingdoms in its resistance to outside rule. Most notably, Rana Sanga fought the Battle of Khanua against Babur, the founder of the Mughal empire.
Under a Muslim Nawab there was a princely state, what was its name?
Tonk

Years later, Kaunitz kept trying to establish France's alliance with Austria. He tried as hard as he could for Austria to not get entangled in Hanover's political affairs, and was even willing to trade Austrian Netherlands for France's aid in recapturing Silesia. Frustrated by this decision and by the Dutch Republic's insistence on neutrality, Britain soon turned to Russia. On September 30, 1755, Britain pledged financial aid to Russia in order to station 50,000 troops on the Livonian-Lithunian border, so they could defend Britain's interests in Hanover immediately. Besthuzev, assuming the preparation was directed against Prussia, was more than happy to obey the request of the British. Unbeknownst to the other powers, King George II also made overtures to the Prussian king; Frederick, who began fearing the Austro-Russian intentions, and was excited to welcome a rapprochement with Britain. On January 16, 1756, the Convention of Westminster was signed wherein Britain and Prussia promised to aid one another in order to achieve lasting peace and stability in Europe.
Why was Beshuzev happy to put the troops on the Livonian-Lithunian border?
Besthuzev, assuming the preparation was directed against Prussia,