Hiranya garbha shaligram usually looks like pregnet one. It also looks like shivalingam shaligram. Hiranya garbha shaligram is used to worship surya,vishnu and brahma. It is one of the rare and auspicious shaligram to worship in home. It is also said that it also specially benefits for women. But all is worshipped this shaligram to please lord vishnu (narayan).