The Dallas Museum of Art (1717 N. Harwood St.) opens its Keir Collection of Islamic Art Gallery to the public Tuesday, April 18. And it’s a big deal. Lauded as “the largest public presentation in the history of one of the world's most important private collections of Islamic Art,” this gallery will showcase pieces rarely shown from culturally and historically significant luster art as well as works in rock crystal. The collection includes the stunning rock crystal ewer from late 10th- to 11th-century Fatimid Egypt (969–1171), which the DMA had exhibited previously in Spirit and Matter: Masterpieces from the Keir Collection of Islamic Art, and which was the first piece from the Keir Collection to arrive to the DMA in 2014. Also on display will be rare manuscripts and beautifully painted miniatures. Admission to this new gallery is free, as it is to the DMA in general. A members-only preview of the new gallery before it opens to the public takes place 11 a.m. to 5 p.m. Saturday, April 15. The DMA opens at 11 a.m. Tuesday through Sunday, and closes at 5 p.m., except Thursdays, when it stays open until 9 p.m. Visit dma.org.