A worker washes a soapstone at the workshop of African Heritage Design Company in Nairobi, capital of Kenya, April 23, 2013. Kenyan soapstones are quarried from Kisii in southwest part of the country. The making process of soapstone handicrafts consists of carving, washing, dyeing, polishing, incising, secondary polishing and packaging. (Xinhua/Meng Chenguang)

A worker polishes soapstone handicrafts at the workshop of African Heritage Design Company in Nairobi, capital of Kenya, April 23, 2013. Kenyan soapstones are quarried from Kisii in southwest part of the country. The making process of soapstone handicrafts consists of carving, washing, dyeing, polishing, incising, secondary polishing and packaging. (Xinhua/Li Jing)

A worker carves a soapstone at the workshop of African Heritage Design Company in Nairobi, capital of Kenya, April 23, 2013. Kenyan soapstones are quarried from Kisii in southwest part of the country. The making process of soapstone handicrafts consists of carving, washing, dyeing, polishing, incising, secondary polishing and packaging. (Xinhua/Meng Chenguang)

Photo taken on April 23, 2013 shows some soapstone handicrafts at the workshop of African Heritage Design Company in Nairobi, capital of Kenya. Kenyan soapstones are quarried from Kisii in southwest part of the country. The making process of soapstone handicrafts consists of carving, washing, dyeing, polishing, incising, secondary polishing and packaging. (Xinhua/Li Jing)

A worker incises a soapstone at the workshop of African Heritage Design Company in Nairobi, capital of Kenya, April 23, 2013. Kenyan soapstones are quarried from Kisii in southwest part of the country. The making process of soapstone handicrafts consists of carving, washing, dyeing, polishing, incising, secondary polishing and packaging. (Xinhua/Li Jing)

A worker packs soapstone handicrafts at the workshop of African Heritage Design Company in Nairobi, capital of Kenya, April 23, 2013. Kenyan soapstones are quarried from Kisii in southwest part of the country. The making process of soapstone handicrafts consists of carving, washing, dyeing, polishing, incising, secondary polishing and packaging. (Xinhua/Meng Chenguang)

The combo photo taken on April 23, 2013 shows carving, dyeing, polishing, incising processes and finished soapstone handicrafts at the workshop of African Heritage Design Company in Nairobi, capital of Kenya. Kenyan soapstones are quarried from Kisii in southwest part of the country. The making process of soapstone handicrafts consists of carving, washing, dyeing, polishing, incising, secondary polishing and packaging. (Xinhua/Li Jing)

Two workers polish soapstone handicrafts at the workshop of African Heritage Design Company in Nairobi, capital of Kenya, April 23, 2013. Kenyan soapstones are quarried from Kisii in southwest part of the country. The making process of soapstone handicrafts consists of carving, washing, dyeing, polishing, incising, secondary polishing and packaging. (Xinhua/Meng Chenguang)

A worker incises a soapstone at the workshop of African Heritage Design Company in Nairobi, capital of Kenya, April 23, 2013. Kenyan soapstones are quarried from Kisii in southwest part of the country. The making process of soapstone handicrafts consists of carving, washing, dyeing, polishing, incising, secondary polishing and packaging. (Xinhua/Li Jing)

A worker dyes a soapstone at the workshop of African Heritage Design Company in Nairobi, capital of Kenya, April 23, 2013. Kenyan soapstones are quarried from Kisii in southwest part of the country. The making process of soapstone handicrafts consists of carving, washing, dyeing, polishing, incising, secondary polishing and packaging. (Xinhua/Meng Chenguang)